I got VAC...

When you are cheating - expect to get punished.
Valve's VAC is trained by an AI ( Artificial Intelligence ) and by the data from many Hackers.
When you are getting banned - by Overwatch or VAC - That's your problem.

Hacking in a Competitive Game just like CS:GO isn't a good idea. Just show how good you are - or just train and don't
always Run-'n'-Gun. CS.GO cheating no gud. You live under the conditions Valve is you giving.