High-risk investing yields high rewards, yes, and there is nothing wrong with that just make sure you are not borrowing money or investing more than you can afford to lose
I also use cryptonaire.com for the newsletter but most importantly their Top Pick's section, which I can confirm that I've had great experience with. Also if you do not feel confident about a new or low volume cryptocurrency target, be sure to check their verified section to avoid scams. I use this as the start of my research and I move onto doing my own due diligence and read quality articles on news websites, then I come back to check it out before I buy or sell.