welcome and 1st things last: meaning the competition

first actual thing is that you need to lower your BF to below 18 and preferably to 15% and below, for health and performance reasons. Key in this is DIET.

Since you are training 4-5x a week we cant up this by much if any. steroids help ofcourse but dont help much with such high bodyfat. key is diet here and alongside you can do some testosterone and t3 to speed up the process a bit and some HGH this works well for losing bodyfat.

If you want a mix then go for lean gain mix and take 2ml per week. this will protect the muscles while you are dieting and losing bodyfat.