I have around 11k blitz games on my lichess account and still hover around 1400-1500 rating because I am too lazy to learn any openings and always just wing it, usually deciding what to play by trial and error. how much better would I be able to get if I actually tried and learned some openings?

this is my favorite opening with white and it's so ridiculously retarded that 95% of the time I gain like 10-20 seconds on my opponent after this move because they are dumbfounded by the extremely powerful degenerate opening in front of them. and at this elo, like 75% of the time they make an inaccurate move and I gain an advantage. I love this shitty opening I concocted to death

1. e4 e5 2. Nf3 Nf6 3. c3 Nc6 4. d4 exd4 5. e5