Here is game, could anyone help me where i made mistakes? I think i did pretty good, saying he was a full 300-400 points higher and i lasted about 100 moves.

I dont mean to sound cynical, but playing on that long in a lost position is rude. If you're looking to learn you can ask him for a post-mortem, but resign if there's no escape.

Your biggest mistakes were:

9, 19, 22 (over-aggresive), 23, 24, 33, 35, 46 (Qb4+ kept you comptetive)

Akuni, I would respectfully disagree with the view that playing on that long in a lost position it "rude."  I would have resigned, but that is for each individual player to decide.

In other competitive games, such as basketball, soccer, or American football, when one side has an insurmountable lead, the losing team doesn't just quit the game and default when it is obvious they are going to lose.  They just continue playing the game in a sportmanlike manner, giving it their all until the end.  There's nothing wrong or rude about that, in my humble opinion.

Along with that, it helps both sides with their endgame practice.  I don't mind people not resigning in games that I am winning; it gives me more of such endgame practice.

Lastly, who knows, if the winning player gets careless, there may be a stalemate.  It has happened even to the best.

Respectfully,

George

"In other competitive games, such as basketball, soccer, or American football, when one side has an insurmountable lead, the losing team doesn't just quit the game and default when it is obvious they are going to lose.  They just continue playing the game in a sportmanlike manner, giving it their all until the end.  There's nothing wrong or rude about that, in my humble opinion."

these games also have time limits and spectators.

I think you probably should've played 20 Bf4 followed by 21 Be5, trying to trade off your bishop.  Putting all of your pawns on the same-color squares as your bishop lessens its effectiveness considerably.

thanks for the tips. THe reason i dragged it out is because i wanted to see how he would beat me, usually i would resign in a position like this