Chess / sicilian defence

I am trying to reach 1900 points on lichess.org but it seems impossible for now. Because it needs something that I haven't got now. Somehow, I can't get under 1700 points. This level is my level I think and I should get used to be here. Yesterday, I started a game against Ernestillo (1868) with no hope. 1.e4 c5 2.Nf3 Nf6 3.be2 e6 4.O-O g6 5.d4 cxd4I'm triying to play Sicilian Defence when I play dark side. ..6.Nxd4 Nxd47.Qxd4 Nf68.Nc3 Bd79.Nb5 O-O10.Bf3 a6I don't know too much openings. Playing with Sicilian Defence as dark side gives me some opportunity to reach end game as equal. ..11.Nc3 Qc712.Qe3 d613.Bd2 e514.Rad1 b515.Qe2 be6From now on, I was getting time advantage. He was losing too much time by thinking move by move. ..16.Bg5 b417.Bxf6 Bxf618.Nd5 Bxd519.Rxd5 Rfc820.Rfd1 Be6He attacked to my d6 pawn and I did Be6 move because his threatening...21.Rc1 a522.c3 a423.Bg4 Rd824.Qd2 Ra525.cxb4 Rxd5...26.exd5 Qb627.Rc6 Qb528.h3 Kg729.Be2 Qb730.Qc3 Bf631.a3 e432.Qc2 Re833.Rxd6 e334.f3 Qb8I found an attack chance after this move. 35.Rc6 Qg3Now I had a chance to finish the game using both my e3 pawn and my Queen.36.Qd1 Be537.Bc4 Qh2+38.Kf1 Qh1+39.Ke2 Qxg2+40.Kd3 Bxb2..After the match, I analyzed board. I saw that I couldn't use my chance to finish it. But my opponent lost too much time when he tried to save his King from my Queen, pawn and Bishop.41.Qe2 Qf242.d6 Bf643.Rc7 Qxe7+44.Kxe2 Kh645.d7 Re5..After this moves, I decided to play by time because my opponent had 25 seconds against my 6.15...46.Rc8 Kh547.d8=Q Bxd848.Rxd8 Kh6...49.Rxh8 h550.Rd8 Kxh351.Rd1 Kg2 You can see full game in here. If you share your comments with me, maybe you can contribute to my improvement. I'll try to give you upvote between 60-80% of all your comments. You can Upvote this post to give you a higher upvotes.