First purchase should be the L59 Ping irons. It's the first good set of irons available with high trajectory. It also has a long enough 3-iron that you can drop the hybrid and use three wedges.
After that, depending on how many credits you can spend and what your plans are for future upgrades, I'd suggest starting to buy some high spin wedges (64°, 60°, & 56°). I don't know how definite your 3000 credit spending limit is, but the L52 64° MAX Spin wedge is a very nice wedge. That one combined with the L59 Ping irons would put you at 3420 credits. IMO, the MAX Spin wedges are the best fairly inexpensive wedges available before the more expensive level 70's and 80 Titleist Vokey wedges.
I think your driver is okay for now. You'll be moved to longer tees when you reach Master, so you might want to be starting to think about a driver upgrade. The L69 is good for the credits. The L55 is very good but expensive.
Actually, you caught me in a generous mood. I'll gift you the L52 MAX Spin wedge, and you can use your credits for other things. Check your inbox.