Kiedy już się wprowadzę, będę miała własne miejsce do pracy i do odpoczynku.

Polish often leaves out subject pronouns when they are clear from the verb form. Here both wprowadzę and będę miała are 1st person singular, so ja is not needed.

If you added ja, it would usually sound more emphatic: Ja będę miała... = I will have...

Here Kiedy już means something like when / once ... already by that point. In natural English, the best match is often:

• When I’ve moved in...
• Once I’ve moved in...

So już does not mean the action is already finished now. It adds the sense of by then, finally, or once that stage is done.

It comes from the verb wprowadzić się, which means to move in.

This is a perfective verb. In Polish, perfective verbs use present-tense endings, but those forms usually refer to a future completed action. So:

• wprowadzę się = I will move in / I’ll have moved in
• not a true present tense

That is why wprowadzę is translated as future here.

Because the sentence is about a single completed event in the future: the moment when the move-in is done.

• wprowadzam się is imperfective and would normally suggest I am moving in or I move in in a more ongoing/process sense.
• wprowadzę się is perfective and focuses on the action being completed.

So Kiedy już się wprowadzę... means Once I’ve moved in..., not While I’m moving in...

Się is part of the verb wprowadzić się. With się, the verb means to move in.

Without się, wprowadzić usually means something else, such as to introduce, to bring in, or to enter/input depending on context.

As for word order: się is a very common little particle in Polish, and it often appears before the finite verb in natural sentence flow, especially after words like już. So:

• już się wprowadzę = natural
• już wprowadzę się = possible in some contexts, but less neutral here

That is a real difference between English and Polish.

In Polish, when you talk about a future event after kiedy (when), you normally still use a future form:

• Kiedy się wprowadzę, ... = When I move in, ...

So even though English avoids will after when, Polish does not work the same way.

This is the future tense of mieć (to have).

Polish can build the future of an imperfective verb with będę plus a form that looks like the -ł past form. So:

• będę miała = I will have (feminine speaker)

Even though miała looks like something from the past system, after będę it is part of a future construction.

Yes. Miała shows that the speaker is female.

• będę miała = said by a woman
• będę miał = said by a man

This is very normal in Polish: some verb forms agree with the speaker’s gender.

Because miejsce is a neuter singular noun, and the adjective has to agree with it.

The base adjective is własny (own), but here it becomes:

• własne miejsce

Also, after mieć, this phrase is the direct object, so it is in the accusative. But for neuter singular nouns like miejsce, the accusative looks the same as the nominative, so the form stays miejsce.

Własne means one’s own, so in this sentence it naturally means my own, because the speaker is talking about herself.

Polish often does not need an extra possessive like my if the owner is obvious from context. So:

• będę miała własne miejsce = I’ll have my own place/space

You could say moje własne miejsce, but that is more emphatic, like my very own place.

This structure uses do + genitive to express purpose:

• miejsce do pracy = a place for work / for working
• miejsce do odpoczynku = a place for rest / for resting

That is why the nouns change form:

• praca → pracy
• odpoczynek → odpoczynku

So the phrase means a place/space for work and for rest.

Yes, you could. Both are possible:

• miejsce do pracy i do odpoczynku
• miejsce do pracy i odpoczynku

Repeating do makes the structure a little more balanced and explicit. Leaving it out the second time is also natural.