If you don't have the experience, it's likely you'll lose all your money. That being said, $150 is not much so if you do lose it, think of it has a $150 lesson. For an exchange, I'd recommend Bitrex to trade on but use Coinigy as they have better graphs to use technical analysis on. Good luck!
ICOs are a solid way to make money for beginners as long as you do the research.
Use sites like:
https://www.smithandcrown.comhttps://www.towerrockresearch.com/https://hacked.com/Make sure you do your own research and come to your own conclusion. Do not follow what people say blindly!
Good luck!