You need to find what works for you, I started with airdrops and the majority of the projects do not pay, I had to start promoting bounties and so far the result isn't good, another thing we need to understand is we are in a bear season, many new projects won't show up in such period.
Indeed in bear season it is not as busy as in bull season but there is still a lot of work that can generate from airdrops and bounties and there are also new projects. the problem of not getting paid or no value it's a common thing it can be a valuable experience to be more careful in choosing a good bounties project