what's the best way to practice chess?

I have done 1k+ puzzles and I have seen very little improvement and I play against the computer like 10 times a day and I still can't beat people online. What do I do? 

You could try the lessons on Chess.com.

tedious...

Play solitaire chess using the book Logical Chess Move By Move. You should see some improvement.

I'll try that.

you could also play games moving your king around and see how fit and agile he is

Happy Victory Day!

Whenever you lose a game, analyse it so as to learn from your mistakes.

how to play a chess?

For puzzles, I can only do 5 to 10 before I get tired and start guessing continuation, thats when the mistakes start. Basically, stop when you feel you aren't doing them properly, it's a sign that your brain has had enough for that session. Quality is important, not quantity. Same for games. Play fewer good quality long games to improve, where you can spend more time thinking carefully about the position and candidate moves. You will improve more over the longer term than playing many short low quality games.

you've only played 15 games, which means your rating isn't suited to your ability yet. You're probably losing because you're playing people better than you (which is nothing to be ashamed of). Just play more games, eventually you'll be at a rating where you'll start to win games and climb up the ladder. But you have to actually play games. 

P.S: playing against bots isn't as good as playing real players 

I have to agree

I find doing puzzles to help notice things you want to catch during the games.