Don't know what I am doing wrong.

I started trading and my win rate was around 60% with a average 4RR. Lately this hasn't worked, what am I doing wrong?

That, statistically, wasn't going to continue.

There's an inverse correlation between WR and RR. You can draw a pie chart to make it easy. 1:1 Risk:Reward would have 2 pieces and 50% odds for WR. 1:2 would have 3 pieces and be 33%, 1:3 would have 4 pieces and be 25%, and 1:4 which you had would leave you with 5 pieces and 20% WR. Very few, I know of exactly zero, traders are taking 20% odds and turning it into 60% consistently.