about your question about computer analysis, i don't know the answer but on my opinion you're first questionable move is 5. g3?! because i would have played 5. e4 establishing a pretty looking center and attacking the c pawn..
Computer Analysis on non-Chess.com Game
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Is it possible to have Chess.com do a computer analysis of a non-Chess.com game? I input the PGN on the analysis board (which appears below) and saved it.