Cool, yeah I did $5 bucks so it shouldn't really affect me negatively hopefully. I only have about 10 videos and it's a gaming channel so I guess I will see. I probably wont see a lot of growth until 3 or 4 months down the road.Depending on your budget, it can help. If you want to do a low amount, like 15 bucks a month, it really won't help a whole lot. I'd rather invest that in something else that would help give a greater return
I have another channel and one of my videos has about 2000 views which grew after about 4 months. It was a review video so I have some experience with how the growth process works. I dont think I will really get any followers from it, I just feel having more views on my trailer may sell my channel a little better for natural growth.I don't advise advertising until you've figured out how to grow naturally unless you really have a lot of money to experiment with. And I also suggest you take the free google adwords courses and even pass some of the exams. This can really help you save money and advertise more effectively.
Advertising used right can and will help you to more views and if the viewers find your content interesting some of them will subscribe for sure. But again it comes down to money. Do you have a budget or not, but a lot of things can be done by yourself but it takes time.but it can help to boost more views