something I like to do every so often when I lvl up random stats kinda like you have I like to even them all out gives me something to do for a while and makes my account a bit better
example
stat a 73 up to either 75 or 80
stat b 37 up to 40
stat c 56 up to 60
I usually bring it up to the 0 but 5 is good if you're either A 80-90+
either way you're guaranteed to be make some bank and get a bunch of levels.