Just having a brief look through a couple of your games there are a few things you can do:
1.Play longer games so that you don't have to worry about running out of time or moving quickly. Give yourself the best chance to find good moves.
2.You hung pieces and left them to be captured. This is something you have to stop if you want to get better and it pretty much comes down to blunder checking before every move you make. Ask yourself each time if you are going to lose material.
3.Your opening play was a bit dubious, moving the same piece multiple times, developing inefficiently. Think of the opening like a race. You are racing against your opponent to get all your knights and bishops out, and castle your king before them. If you lose time in the opening by fiddling with your pieces it leads to difficult positions.
There are many good YouTubers out there as well as Gotham so have a little explore of the others.
Any tips or comments are much appreciated.