I started low budget also. Start doing some research on some of the smaller market cap coins. Find one you believe in than purchase and hold. The ways things are going You'll probably double or triple real fast and can branch out from there. Also don't disregard the top coins, they are still doubling all the time.
I think this is good advice, if your risk tolerance is up for it. And like others have said, after you have bought just hold the coins and don't panic or try exit without profit. Look for something that isn't hyped right now but might get hyped in the future. Be part of the coin's community to make sure it's not a scam. This is crypto everything gets hyped at some point.
Otherwise just put your money in the big boys and don't sell for years. Most of the coins people are recommending here I wouldn't buy myself, except for NEO. For long-term.