You could try not using them and instead fix your diet and work-out program.
You squat 308 and you want to just pop whatever steroids you can find in your mouth? Come on, seriously. It makes sense to use gear once you finally customize a functional diet and work-out routine. People like that know how to keep gains. But when you use them to go from being ultra weak, to slightly-less-ultra weak, I can promise you it won’t be worth your time. You don’t have enough experience lifting.
Give yourself about 3 or 4 more years, and eat… a lot.
Besides, both Winstrol and Dianabol are 17-alpha-alkylated DHT products. There’s no synergy. If you don’t know what I’m talking about, reading about it would greatly open up your eyes.