Help Wanted and Needed !!!

I have recently been trying to open up from the cutoff and button, the problem is I am a little unsure of my preflop range from these positions

Here’s a few things that I am not sure of

Suited hands in the cutoff or button . What is the range here , would I raise a hand like Q7 in the cutoff or do I do it on the button or at all ?

I know it is player dependant but if I am going to open up I will have to raise more regardless of the players

How about J2 suited on the button , I would raise k7 suited from the cutoff and the button , but is that correct ?

The next area is when I have these hands and I am going to raise but get raised first , for example K10 suited I would normally raise from the cutoff and the button and depending on the table utg+1 but what if I am on the button and get a utg+1 or cutoff raiser ?
do I fold ? do I call ? What do I do ?

As well as the suited hands what about 1 gappers or 2 gappers and how far down do I go , currently I will raise 56off and up from the button in an unraised pot , is that correct ?

Then what about the higher cards when in a raised pot ? how about A10 or KQ do I fold raise or call , it is these marginal hands that I stuggle with

On the C betting side of things , what sort of percentages do you C bet against , I used to C bet all the time , but now I try for somone who folds over 70 percent, is that too high ? , should I go lower whats the right percentage

Sorry about the length and number of questions but I need answers

Later All

Graham