i mean i raced against cpu's that go way faster than me but their car is stabilized and i was trying to use my cars for drifting and racing so basically for 2 purpose but guess it didnt work out
No offence, but that's not really the best theory. Drift and 'race' settings are going to be different, especially gearbox and LSD settings.
Have one car for specifically for each, it's alot easier that way as those wonderfully thoughtful people at Polyphony have only given us 1 settings per car - having two cars is the easiet solution.
You won't have to constantly be changing setups, potentially loosing certain settings or going into a race with drift settings or vica versa.
The drift sub section has got some extremely helpful threads about drift cars and setups, likewise, the Tuning subsection has got some very good infomation about setting a car up, aswell as explaning things like LSD's and anti roll bars etc etc.
It is possible to run quite high power with lower grip tyres online,
don't use racing softs or driving aids - these have the potential to distort any changes you make to the suspension and LSD, meaning you won't learn anything, and often can become more confused.
Don't try and run before you can walk, start of with a mildly tuned car for each (drift and race), then start learning about setups for both and slowly progress.
Also, a handy tip is to have 3 copies of the same car - 2 for racing, 1 with JUST a custom LSD and the other with JUST custom suspension. This way you can adjust each without the other potentially having an affect, and it'll help you understand what each one does alot quicker, plus you won't be going round in circles or second guessing yourself asking if one is screwing up the other - which, potentially, it can do if not tuned right.