If you not sell any of your bitcoins yet then you lost nothing since you itself mentioned that the market can boom at any time so hold your coins until to make money.
Doing airdrops is a way to make money but it is hard to find the legit aidrops,most of them were scams and worthless to do,you can try bounties if you want to make money which is better than airdrops.
Airdrop is just one way to make additional free money, but don't expect it to be big. Probably just a few dollars, cents even.
Try to do bounties, while it's also a hit or miss as sometimes it does not have value or may even be a scam.
It's good that you asked and also followed rule #1 - invest only what you can afford to lose.
Crypto will take a lot of time, work and research and also trying to keep up with the news on the projects that you follow.
Good luck on your crypto journey.