It's worth it to start sooner rather than later. You can't stop time, so you might as well make good use of it. You don't want to be kicking yourself a few months from now having procrastinated learning 2LLL for longer than it would have taken to learn it. It takes a long time, but it's worth it if you're going to continue cubing for that long.
Also, don't be overwhelmed by the number of OLLs. Try to learn the algorithms intuitively by how certain blocks move around. This is a simple example one:
R U R' U' R' F R F'
All you're doing is removing an F2L pair (R U R') and hammering it back in (U' to line it up and R' F R F')
Once you know that one, you can learn this one in a matter of minutes (or even seconds):
S R U R' U' R' F R f'
It's the same thing but with an S at the start, and an f' instead of F' at the end.
Or these two:
F R U R' U' R U R' U' F'
f R U R' U' R U R' U' f'
Both just two normal sexy moves (R U R' U') but one has uses F and the other uses f.
With just sexy moves and regular F2L pair stuff you can learn a large number of OLLs (and some PLLs) in a few days or less. Just take a look through the OLL page and if you see one with an easy alg then just learn it and practice it a bit. Some OLLs are long, but most are short and simple.
Here's one more:
R' U' R' F R F' U R
Just take the back right F2L pair and remove it, but don't put the side back down (R' U'), do a hammer in on the front (R' F R F') and then put the pair back in that you took out at the start.
Basically these are "triggers" with some easy set up moves and they make memorizing and performing most OLLs really easy.
Remember that these take a matter of seconds to perform, and even if it's a four or five second execution because you just started learning the alg that's still no time at all in terms of practice. So, don't just do it a few times and stop. Practice for a minute at a time at least. If you can practice for ten seconds, you can practice for a minute (usually). That's a lot of practice if you do it several times throughout the day.