Worst 2x2 scramble ever(I use CLL)???

U R U2 F U F2 U2 R2 U2

ok for bad scrambles like this, what I'd recommend is try to find a 2x1 block in 1-2 moves.

That way you can build off of it and get a decent first layer.

You can do this with white/orange by doing x2 U' R, and you get a not so great case.

This case is done by solving each piece one at a time. So you would do U2 R U' R' to solve the RG piece and then would do R' F2 R to solve the white/blue piece.

So in total you have U' R U2 R U' R' R' F2 R.

R' R' cancel so you get

U' R U2 R U' R2 F R

That is a good layer solution. Not great, but what you should realistically expect in a solve.

But there is something better, that is kind of hard to spot as a CLL solver.

I would not blame you for missing this, it is hard to see especially if you aren't used to looking at non-layer faces.

On green, if you do an x' prerotation to start, you have:

U F' U2 R into PBL

Now, if you one-looked this, you would see that you have to do a rotation, so to avoid the rotation, you can do:

y'

L U' L2 F

that way you can do PBL rotationless

so full solution would be

y'

L U' L2 F R2 U' B2 U2 R2 U' R2 U'

now of course I wouldn't expect anyone, including myself to find a solution like that. But what I showed earlier is a good standard for what your layers should be for really bad scrambles.