Ben akşam çantamı hazırlıyorum, böylece sabah erken çıkabiliyorum.

Yes. Turkish often drops subject pronouns because the verb ending already shows the subject.

• hazırlıyorum = I am preparing
• çıkabiliyorum = I can leave / I’m able to leave

So Ben akşam çantamı hazırlıyorum... and Akşam çantamı hazırlıyorum... are both grammatical.

Including ben can add:

• emphasis: I do it
• contrast: I do this, maybe someone else does something different

So here ben is optional, not required.

Here akşam means in the evening / in the evening time.

Turkish often uses time words without a separate preposition like in:

• sabah = in the morning / morning
• akşam = in the evening / evening
• gece = at night / night

So:

• akşam çantamı hazırlıyorum = I prepare my bag in the evening

Depending on context, akşam can also sometimes feel like this evening, but in this sentence it is most naturally understood as a general time reference: in the evening.

Because çantamı means my bag as the direct object of the verb.

It has two parts added to the noun çanta:

• çanta = bag
• çantam = my bag
• çantamı = my bag (as a definite direct object)

Breakdown:

• çanta = bag
• -m = my
• -ı = accusative case marker

So:

• çantamı hazırlıyorum = I am preparing my bag

If you just said çanta, it would mean bag in a more general, indefinite sense, which does not fit as well here.

In Turkish, a specific/definite direct object usually takes the accusative.

Since my bag is specific, Turkish marks it:

• çantamı hazırlıyorum = I am preparing my bag

Compare:

• çanta hazırlıyorum = I am preparing a bag / bag(s)
• çantamı hazırlıyorum = I am preparing my bag

Because the speaker is talking about one particular bag, the accusative is natural here.

hazırlıyorum comes from the verb hazırlamak = to prepare.

Breakdown:

• hazırla- = prepare
• -ıyor = present continuous / progressive
• -um = I

So:

• hazırlıyorum = I am preparing

In many beginner explanations, this is called the present continuous. In Turkish, this form is also often used for:

• what someone is doing now
• habitual actions in everyday speech
• planned or regular actions

So here it can mean something like:

• I prepare my bag in the evening
• I’m preparing my bag in the evening

English may prefer the simple present for a habit, but Turkish often uses -yor naturally in sentences like this.

That is very normal in Turkish.

The -yor form is not limited to actions happening at this exact second. It is also commonly used for:

• routines
• repeated actions
• current habits
• near-future plans

So Akşam çantamı hazırlıyorum can describe a habit:

• I prepare my bag in the evening

This is one of the places where Turkish and English do not match perfectly. English often prefers I prepare my bag in the evening, while Turkish can very naturally use hazırlıyorum.

Böylece means something like:

• thus
• in this way
• so
• thereby
• as a result

In this sentence, it introduces the result of the first action:

• Ben akşam çantamı hazırlıyorum, böylece sabah erken çıkabiliyorum.
• I prepare my bag in the evening, so that I can leave early in the morning.

It connects the two ideas clearly:

1. I prepare my bag in the evening.
2. As a result, I can leave early in the morning.

Turkish usually does not need a preposition like in before time expressions.

So:

• sabah = in the morning
• erken = early

Together:

• sabah erken = early in the morning

This is a very natural Turkish time expression.

You may also hear similar phrases such as:

• sabah erken saatlerde = in the early morning hours
• sabahleyin erken = early in the morning

But sabah erken is simple and very natural.

çıkabiliyorum is built from the verb çıkmak = to go out / leave.

Breakdown:

• çık- = leave / go out
• -a bil- = can / be able to
• -iyor = present continuous
• -um = I

So:

• çıkabiliyorum = I can leave / I’m able to leave

This is the ability suffix:

• gidebiliyorum = I can go
• yapabiliyorum = I can do
• çıkabiliyorum = I can leave

Because in Turkish, ability is often expressed with -ebil- plus a normal tense marker.

So:

• çıkabilirim = I can leave / I may be able to leave
• çıkabiliyorum = I can leave / I am able to leave

The -yor form here often gives a more current, practical, real-world ability sense:

• I’m able to leave early
• I can manage to leave early

In this sentence, the idea is:

• Preparing the bag in the evening makes it possible for me to leave early in the morning.

So çıkabiliyorum works very well.

Yes, the basic meaning of çıkmak is often to go out / to come out / to exit. But depending on context, it can also mean leave.

Here the context is:

• preparing a bag
• leaving early in the morning

So çıkabiliyorum is best understood as:

• I can leave early
• I’m able to head out early

That is a more natural English translation than a literal go out in this sentence.

Because the subject stays the same, and Turkish does not need to repeat it.

The full idea is:

• Ben akşam çantamı hazırlıyorum, böylece ben sabah erken çıkabiliyorum.

But repeating ben would usually sound unnecessary unless you want strong emphasis.

So Turkish normally says:

• Ben akşam çantamı hazırlıyorum, böylece sabah erken çıkabiliyorum.

The subject of both verbs is understood to be the same person.

Turkish word order is flexible, though some orders sound more natural than others.

The sentence as given is very natural:

• Ben akşam çantamı hazırlıyorum, böylece sabah erken çıkabiliyorum.

But Turkish can move elements around for emphasis:

• Akşam çantamı hazırlıyorum, böylece sabah erken çıkabiliyorum.
• Çantamı akşam hazırlıyorum, böylece sabah erken çıkabiliyorum.

These still mean roughly the same thing, but the emphasis changes:

• akşam earlier = emphasis on in the evening
• çantamı earlier = emphasis on my bag

So the original order is natural and neutral, but not the only possible one.