Should I take a risk?

I have a dilemma in my mind, should I, or shouldn't..

I have a small channel with approx 3k subs, 1 video makes me pretty nice amount of money from adSense and cpa stuff, to achieve that, i bought views in a start, to rank it.

My goal for now is to actually have around 10 semi white-hat vids ranked.

Should I do that on my main channel and risk it all by buying views, or should i make another channel?
In fact I'm not sure if cpa stuff will work again on future videos so adSense would be main income source...