How to get past 1000?

I'm at around 800. I've heard mainly focus on tactics and more basic opening ideas. I like to use chesstempo.com for tactics practice.

My rating is about the same as yours but my USCF rating is about 1100 because I face higher rated people. My brother is rated 2000 and I play him. I lose of course but it is good practice.

Personally, as a 1300 player, I think the main things to look out for are your opponent's tactical ideas and to limit blunders. I still make blunders sometimes, but I try to minimize them. Also, make sure you have discovered attacks down. They are powerful weapons at the intermediate level.

I don't think learning openings should be something that one should spend very much time on to get past 1000.

All right, I'm not good at looking at games and finding patterns in them. I'm also not good at making general suggestions for ~1000 level, since I don't know how much my experience generalizes to others'.
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Anyway, so, I figured I'd look at three of your rated rapids, and make comments on them. I don't know if this is helpful at all, but I hope it's at least somewhat helpful....
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M30pi:
There are nice moments. You clearly know something about opening principles; try to wean yourself off of making one-move attacks though (4...Nd4 moves your knight twice in the opening....you generally don't want to do that since you want to keep developing and not wasting moves). Be careful with how you deal with pieces that are be pinned -- that was an unfortunate error at the end where you allow Ng5 because your bishop no longer (effectively) defends g5. If you aren't doing so already, you should try to think about what potential plans your opponent has; that may help prevent moments such as this one.
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enathwani:
This game gives me the impression that you do tend to make one-movers frequently (Bd4 instead of developing another piece), so do try to avoid that. You have an interesting tactic available on move 11 (Bxf6 and the bishop is undefended, if white plays Bxf3 you play Bxd8 and now both sides are hanging a bishop). For tactical patterns like that, I've found puzzles are helpful, which others have mentioned. Funny thing is, I guess you essentially played out the idea of that tactic, and you captured a trapped rook, which was nice. Like others of your level, you're clearly seeing some nice tactics (but hardly anyone can go wrong with improving on those.)
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dGideon:
After your opponent unpins the knight you do drop a pawn, not that that's a huge deal at this level. Other than that, I think the main thing that stood out to me was, as before, multiple one-move attacks (okay, I guess I did manage to find a pattern in your games this time.) You did have some missed opportunities to gain some pawns -- for example, you could play 26. Bxe7 which removes the defender of the pawn on f5. After Rxe7 Nxf5 you are additionally forking the rook and two pawns, so the whole sequence gains you two pawns.

So yeah....sorry for the multiple comments in a row, but aside from various tactical mistakes (which everyone can work on), the one thing that stood out the most was the penchant for one-move attacks -- to improve, you should definitely have more long-term thinking.

Estou em torno de 800. Já ouvi falar principalmente em táticas e ideias de abertura mais básicas. Eu gosto de usar o chesstempo.com para praticar táticas

My rating is 1550. Just play games.

Playing games does help, but it's (in general) important to do more than that. Just playing is not the most efficient way to improve.
In particular, I cannot see anyone getting past a certain point while maintaining a habit of frequent one-move attacks

Hi! I think that you might be interested in developing your chess skills further before seeing the results. You might find this post on my blog helpful:

https://www.chess.com/blog/maafernan/chess-skills-development

If you have any other questions, just let me know

Good luck!