Hey guys I'm brand new to this forum and i want to get back in shape. Soo.. how much work do i have...

I know it's a shitload of work and i am prepared for it. I use to in pretty good shape actually but if i don't work out i get big fast and my appetite dosn't help.
I'm
5'7''
285 lbs
25 yrs old
I can pretty much work out a decent diet for myself but would it be good if i use a good cutting drug to speed up my results?. I know steroids is outta the question as of now. But any help would be greatly appreciated. I stepped on the scale today the first time in like 5 months and was amazed at how much weight i gained and decided to join this forum for help support and knowledge as i have been on these boards for about a year and a half. So toady is the day i change my life around