With $150 worth of coins it doesn't really matter what you do. It's very optimistic to expect that in the next few years Bitcoin will be worth 10 times more. Would $1,500 change your life? Even of you are from a very poor country, there's no way such sum can be life-changing and allow you to buy a house. Even 100 times and having $15,000 is really not that much in the modern world.
Sp focus on earning money first and then start worrying about investments.
Thats a big expectation. If this was few years back, maybe there could've been life changing moment with the $150 worth bitcoin. Now things were different and the market have widened. It isn't easy to make big money out of small investment. Maybe this kind of money could turn big on altcoins. Those are completely a gamble. Anyhow considering the upcoming year it is good to hold.