In this game https://online-go.com/game/9196762 I thought I did a good job (playing white) of getting some territory in the corners and on two sides, but I almost gave away the centre completely and only just had enough points to win. Where should I have done something to undo the dominance that black asserted in this part of the board?
made review - https://online-go.com/review/254592 - it seems like you tried to avoid fights at all costs. If opponent is weaker and you can gain something from fight go for it. When opponent have huge moyo reducing/invading it should be high priority, you waited way too long.