A medida que practico, me resulta más fácil explicar cómo cuidar a cada mascota.

A medida que is a fixed expression meaning as, as/while, or the more... the more... when something changes gradually over time.

So A medida que practico means something like:

• As I practise
• The more I practise

It is more specific than just cuando, because it shows progressive change, not simply when something happens.

Yes, practico here is the first-person singular present of practicar:

• yo practico = I practise / I practice

It has no written accent because it is a verb form.

Compare:

• practico = I practise
• práctico = practical or a practical person

So the accent changes both pronunciation and meaning.

Spanish often uses the simple present where English might use either:

• I practise
• I am practising

Here, practico sounds natural because it describes a repeated or ongoing process in general, not necessarily what the speaker is doing at this exact second.

So A medida que practico means as I practise / as I keep practising.

Because the speaker is talking about a real, factual action: they actually practise, and as that happens, something gets easier.

After a medida que, Spanish normally uses the indicative when the action is presented as real or habitual:

• A medida que practico...

If the action were uncertain or only imagined in the future, other structures might be possible, but here the indicative is the normal choice.

Literally, it is something like:

• it turns out easier to me
• it is easier for me

In natural English, it usually means:

• I find it easier
• it becomes easier for me

So me resulta más fácil explicar... means the act of explaining is becoming easier for the speaker.

The me means to me / for me.

Spanish often expresses this idea as:

• Me resulta fácil = It is easy for me
• Te resulta fácil = It is easy for you
• Nos resulta fácil = It is easy for us

English often makes the person the subject:

• I find it easy

But Spanish often makes the task the subject and uses an indirect object pronoun for the person affected:

• Me resulta fácil explicar...

Both can work, but they are not exactly the same.

• Me resulta más fácil... = I find it easier... / It feels easier to me...
• Es más fácil para mí... = It is easier for me...

Resulta often sounds a bit more subjective or experiential. It suggests how something comes across to the speaker in practice.

So me resulta más fácil is very natural here because the speaker is talking about their personal experience as they improve.

The subject is the whole idea of:

explicar cómo cuidar a cada mascota

That entire infinitive phrase functions like a singular idea:

• Explaining how to care for each pet becomes easier for me

Because that whole action is treated as one unit, the verb is singular:

• resulta
• not resultan

Because it agrees with a singular idea: the action of explaining how to care for each pet.

In Spanish, an infinitive phrase like explicar cómo cuidar a cada mascota is treated as singular, so the adjective is singular too:

• me resulta fácil
• me resulta más fácil

Also, fácil has the same form for masculine and feminine singular. The plural would be fáciles.

It has an accent because it introduces an indirect question:

• cómo cuidar a cada mascota = how to care for each pet

In Spanish, question words keep their accent in both direct and indirect questions:

• ¿Cómo cuidas a tu mascota?
• Explica cómo cuidas a tu mascota
• Explicar cómo cuidar a cada mascota

Without the accent, como usually means things like:

• as
• like
• I eat

So the accent is important.

Because cómo cuidar means how to care in a general sense.

After verbs like explicar, decir, mostrar, or aprender, Spanish often uses:

• question word + infinitive

Examples:

• No sé qué hacer = I don’t know what to do
• Me explicó cómo llegar = He explained to me how to get there

If you said cómo cuido, it would mean:

• how I care for them

That changes the meaning. The sentence here is about explaining the method in general, not describing exactly what I do.

That a is the personal a.

Spanish often uses a before a specific animate direct object, including people and often animals, especially pets:

• Veo a mi hermano
• Quiero a mi perro
• Cuidar a cada mascota

Here, cada mascota refers to individual animals, so a is natural.

This is not the same as the English to in how to care. The infinitive part is simply cuidar; the a belongs with cada mascota.

Because cada is followed by a singular noun:

• cada mascota
• cada libro
• cada persona

Even though cada refers to multiple items one by one, the noun stays singular.

So cada mascota means each pet.

Cada mascota focuses on pets individually:

• each pet may need different care
• the speaker is explaining how to care for them one by one

Todas las mascotas would mean all pets as a group.

So cada mascota is a better choice if the idea is that care can vary depending on the animal.

Yes. A very natural alternative is:

• Cuanto más practico, más fácil me resulta explicar cómo cuidar a cada mascota.

This means almost the same thing: The more I practise, the easier it is for me to explain how to care for each pet.

The original sentence with A medida que sounds a little more like as the process goes on, while cuanto más... más... emphasizes the the more... the more... pattern very clearly.