watasi no hande ha takai ga, abereezi ha hikui.

It breaks down like this:

• 私のハンデは = my handicap
• 高い = is high
• が = but
• アベレージは = the average / as for the average
• 低い = is low

So the pattern is basically:

X は A が、Y は B
= X is A, but Y is B

This is a very common way to contrast two things in Japanese.

の links a noun to another noun. Here it shows possession or relationship.

• 私 = I / me
• 私の = my
• 私のハンデ = my handicap

So の is doing the job that my does in English.

You will see this pattern all the time:

• 私の本 = my book
• 先生の車 = the teacher’s car
• 日本の文化 = Japanese culture

Because they are loanwords.

• ハンデ is a borrowed word, often used as a shortened form of ハンディキャップ
• アベレージ comes from English average

Katakana is commonly used for foreign loanwords in Japanese.

A native English speaker may notice that these words feel familiar, but remember that Japanese may use them a little differently from English depending on context, especially in sports.

は marks the topic, and it often adds a contrastive feeling too.

In this sentence:

• ハンデは高い
• アベレージは低い

the speaker is contrasting two things:

• the handicap
• the average

So は is not just marking topics mechanically; it helps set up the contrast:

• as for my handicap, it’s high
• as for my average, it’s low

That contrast works especially well because the sentence is comparing two different measures.

No. In this sentence, が is a conjunction meaning but.

Japanese が has more than one use:

• as a particle marking the subject
• as a conjunction meaning but

Here it comes between two clauses:

• ハンデは高い
• アベレージは低い

So it means:

• My handicap is high, but my average is low.

This is a very common beginner confusion, because the same written form が can do different jobs.

Because it is understood from context.

The full version could be:

私のハンデは高いが、私のアベレージは低い。

But Japanese often omits words that are already clear. Once 私の has been established, it is natural to leave it out in the second half.

So:

• 私のハンデは高いが、アベレージは低い。

still clearly means:

• My handicap is high, but my average is low.

This kind of omission is extremely common in Japanese.

No. Here it means high.

高い can mean different things depending on context, including:

• high
• tall
• expensive

In this sentence, it is describing ハンデ numerically or comparatively, so high is the right meaning.

Likewise:

• 低い means low

So the pair 高い / 低い is being used in the sense of high / low, not expensive / cheap.

Because the whole sentence is in plain style.

• 高い
• 低い

are the plain forms of i-adjectives.

A more polite version would be:

私のハンデは高いですが、アベレージは低いです。

or

私のハンデは高いですけど、アベレージは低いです。

So the given sentence sounds plain, casual, or written-style, depending on context.

Yes. That would be very natural.

For example:

私のハンデは高いけど、アベレージは低い。

This also means My handicap is high, but my average is low.

Very roughly:

• が can sound a little more formal or written
• けど often sounds more conversational

Both are common, and both are correct here.

Something like that is possible, but it is a different structure.

The original sentence uses possession:

• 私のハンデ = my handicap

If you say:

• 私はハンデが高い

then 私は sets I as the topic, and ハンデが高い is the comment about you.

That can work, but the original sentence is more directly focused on the two measurements themselves:

• my handicap
• my average

Also, using は after ハンデ and アベレージ helps create a neat contrast between the two items. So the original wording is especially good for comparing them.