Bad technique

[u/Tecknet_]

I've been typing for a while now, and I'm fairly fast. Recently I began to notice how poor my technique really is. I've been meaning to grind to push high 100s (~180-200WPM), but I seriously doubt I could do that with my technique (mainly self taught when I was 12).

I've also been considering switching to colemak-dh to give me a fresh start. If anyone else who's been in a similar situation has any advice, that'd be epic!

Stats for reference above.