keep losing games

How to play versus players that just keep trading their pieces? I always lose to them it becomes pawn race and small mistakes costs me game keep in mind I am beginner player with rating around 500.

Got to know your endgames well! You must realise that in the endgame, there is usually less room for error.

You're likely missing tactical possibilities: winning pieces and not losing them is the way to win any game at your rating. I am skeptical that you really do play games where you end up in pure pawn races all the time. I'd think it's more likely that one players has at least 1 more piece than the other player at that point. That's why endgame study isn't needed for you at this point in time. Just focus on tactics.

A tip though: when your opponent really likes trading, make sure he's the one trading. The player that's recapturing usually ends up with the more active position. Just make sure you can recapture with a piece that you want to go there. So don't let them trade if this puts your knight on the edge of the board, but do let them trade queens on an open file if you can just recapture with your rook to gain control over that open file.

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I'm in the same boat, and even when I try to apply tactics that I have learned online my opponent always sees what I am doing and attacks, it's basically ten games of trading pieces and one dramatic win or loss, we may have reached our plateau. 

Davidjustiz has been reported.

I think a lot of new players trade pieces a lot.  I am still getting out of that mindset.  Make sure you analyze the games you lose (and win).  It takes time, but it works.  best of luck.

That's a great challenge as a beginner... people who trade trade trade. Check out John Bartholomew's original climbing the ratings ladder video and pay particular attention to over-protection. Look for checks and interference moves to break up move orders 'unexpectedly,' so the sequence doesn't work out how the opponent thought it would, or their position ends up shattered. It takes a while to start seeing those positional things, and evaluate better than others at your rating, and then of course when you do, your rating goes up and you'll start losing again. 

@usernameone you play bullet at 900+ and without meaning to be offensive, your puzzle ratings are :b 

You've barely done any. Puzzles = tactics. Surely the avenue to improving is right there. You certainly haven't plateaued at your full potential. 

The vast majority of your endings will have one side with a significant material advantage that knowing even endings are not necessary. At this stage it is simply necessary to know how to perform the ladder mate (king and two rooks vs king), king and queen vs queen and king and rook vs king.

However, the CM is right in that you will be missing tactical opportunities, even in your endings. For example, from a previous ending of a game of yours (you played as white):

try to trade on your own terms, if they want to trade make sure the piece you re capture with end up in a better position ~ Lao Tzu

You seem to play a lot of Blitz and Bullet games. I recommend you stick to Rapid and longer time controls, so do not play the 10 minute games, but 30 minutes or at least 15/10.

That way you have more time to think and spot tactics, spot hanging pieces, avoid blunders and if the game turns into a pawn endgame you have more time to think at that point also.

I often take more time thinking about one move than a whole Bullet game would last and sometimes even more than a Blitz game would allow me. I am a beginner myself and I do not think I would learn much from moving the pieces around in a randomly fashion for one minute at a time and repeating that process. And that would pretty much be the way I would end up playing bullet after the first few familiar opening moves.

So if you want to learn, I recommend you play longer games.

Good tips about when to trade are given in the comments above, but you still need time to think so you can confirm whether the trade makes your position better or worse. If you have no time to think, you guess, and well, that is just random.

For example, you want to trade opponent's active pieces for your own inactive pieces. For example, trade your inactive bishop for a strong opponent's knight. But you need to first figure out which pieces are strong and which are inactive and that takes at least some seconds (for me sometimes a lot longer)...