Aprendemos a manejar situaciones difíciles.

Aprendemos is the 1st person plural form of aprender in the present indicative.

So it means we learn or, depending on context, we are learning.

• yo aprendo = I learn
• tú aprendes = you learn
• él/ella aprende = he/she learns
• nosotros/nosotras aprendemos = we learn

In this sentence, aprendemos sounds like a general statement: we learn.

After aprender, Spanish often uses a + infinitive to mean to learn to do something.

So:

• aprender a manejar = to learn to handle/manage
• aprender a cocinar = to learn to cook
• aprender a nadar = to learn to swim

This is different from:

• aprender español = to learn Spanish
• aprender una lección = to learn a lesson

So the a is needed here because the structure is learn to + verb.

Not here. In this sentence, manejar means to handle, to manage, or to deal with.

Because the object is situaciones difíciles (difficult situations), the idea is handling or managing them, not driving them.

A useful comparison:

• manejar un coche = to drive a car
• manejar una situación = to handle a situation

So the meaning depends on what follows the verb.

Yes, but with an important detail.

In Spain, for driving vehicles, people more often say conducir than manejar.

• conducir un coche is more typically Peninsular Spanish
• manejar un coche is more common in many Latin American varieties

However, in a sentence like this one, manejar situaciones difíciles, manejar is completely natural in Spain because it means to handle/manage.

Spanish often leaves out the article when speaking about things in a general sense.

So:

• Aprendemos a manejar situaciones difíciles = We learn to handle difficult situations

This means difficult situations in general, not specific ones.

If you said:

• Aprendemos a manejar las situaciones difíciles

that would sound more like the difficult situations: either specific situations already mentioned, or difficult situations as a more defined category.

Both are possible, but the version without the article is very natural for a general statement.

In Spanish, most adjectives usually come after the noun.

So:

• situaciones difíciles = difficult situations
• problemas importantes = important problems
• decisiones complicadas = complicated decisions

This is the normal position in Spanish. English often puts adjectives before the noun, but Spanish usually puts them after.

Because the adjective must agree with the noun.

Here, situaciones is:

• feminine
• plural

So the adjective must also be feminine plural:

• difíciles

Agreement pattern:

• situación difícil = difficult situation
• situaciones difíciles = difficult situations

Yes. That is a very natural English way to express the same idea.

Spanish aprender a + infinitive can often be translated as:

• learn to + verb
• learn how to + verb

So:

• Aprendemos a manejar situaciones difíciles can be understood as
• We learn to handle difficult situations or
• We learn how to handle difficult situations

The subject we is already included in aprendemos.

Spanish verb endings usually show the subject, so nosotros is optional.

• Aprendemos a manejar situaciones difíciles = normal
• Nosotros aprendemos a manejar situaciones difíciles = also correct, but more emphatic

You might add nosotros if you want contrast, for example:

• Ellos se quejan, pero nosotros aprendemos a manejar situaciones difíciles.

It is in the present indicative.

In this sentence, the present tense can express a general truth, a habit, or a broad statement about what people do.

So it does not have to mean that the learning is happening right this second. It can mean something like:

• in life, we learn
• over time, we learn
• generally speaking, we learn

That is a very common use of the Spanish present tense.