Hello!

Im playing against a fish who is raising tight IP, around 35%.

I dont know what to do on this situations, because at this stack depth I know he is raising a strong range, hands strong enought that I beat I think he is shoving (like JTs, Q9s, QTo) so here I have a strong holding against the average opponents, but against this guy it looks like I know Im beat and still I get it in.

Is it crazy to consider flatting or even folding preflop or I have to go in no matter what ??

http://www.boomplayer.com/en/poker-hands/Boom/8675691_16C2C8C9C6