I wish to approach poker from a gto point of view (please let the post be void of debate about gto vs exploitative etc)

Say we open CO for 2,25bb

and Btn flats , both blinds fold in setting.

Preflop the Equity is 45,4 vs 54,6

Given a flop of: Ah 7h Ks, co drops 0,6 Equity and is facing a set, toppair, nutflushdraw+pair, str8-draw heavy range of 42,5 combos, with tt-88 as its weaker portion..

Co has 283 combos, not taking cardremoval into consideration, Co`s range is robust with sets and 2pairs, has plenty 3to str8 and 3 to flush bluff Components and str8+double gs and flush possibilities on turn. If we run into flush vs flush we are always beaten.

When creating a strategy here, what would be your considerations when deciphering the situation?

I can not seem to get a starting point because I cant arrange or contribute value to my thoughts.

Also, With regards to the available Softwares: like pioviewer( I thought I read somewhere that it would take a Century With modern pc`s to crack holdem nl ) Crev, GTO rangebuilder. Is this the worst time to enter onlinepoker? I have only touched briefly on the matter and never really put in the hours, but it seems overwhelming.

Hope to get going adjusting my frame of mind and getting a starting point, ty!