I see a lot the advice of "work on yourself, the girls will come" or something similar. This is actually advice I followed when I was younger. This is not bad advice (in fact it is very good advice, probably better than a lot of advice I've read), but unless while working on yourself you're developing big social circles (some people call this social circle game) you still need to work on game (how to approach and flirt etc). Girls will not just start showing up.

I was going to write a long post as me as an example, but when I read over it, it had the tone of me trying to humble brag and then being passive aggressive nice guy "I'm great! Why don't girls like me!!" I take responsibility for everything in my life and that means right now I need to focus more on game.