I have been learning how to trade btc and altcoins by myself and having my experiences. I read online articles on trading signals and what to watch out for. I've made some profits and lost a good deal. Good thing I started with very little capital. Right now everything looks so negative especially as btc went so bearish.
I need advice on how to improve my trading because I really want to do this

From my experience, you should start trading with small balance (<100$ is enough) then invent your own strategy and practice with it. You should read more tutorial about the market signal or expert trader's instructions.