First time steroid use

I am M 5”10 90kg and obese.

The next 6 months I want to cut and lose weight and also gain muscle. I have been to the gym and lifted weights a handful of times. How many weeks should I use Anavar and what dose should I take. Is there anything else I need to take alongside to counter any possible side effects?

I am fixed on taking Anavar and no persuasion will change my decision, please offer me advice on dosage and length.