I keep losing games but can anyone help me improve??

I cannot comment on Brazillian or other flavours, as I only play international draughts or standard draughts.
But you play 15seconds and 1 min games... There is no game at 15s. There is no point commenting or even trying to get you to play better at those timeframes. Just play bit normal games to start with, and do a few puzzles.
A good start would be : lidraughts.org/study/l8OZW0dF --> once you can figure them all out without too much problems you might be ready to actually play a game.

2

thank you

Alice i will help you. send me private message.

Lidraughts studies might help you. lidraughts.org/study

Thanks for the replies everyone