Chisels, but you first have to learn how to sharpen them. Spend your free time watching Youtube videos and reading. I use the "scary sharp system" that uses various grades of sandpaper. Cheap and available everywhere. Quality sandpaper, not that cheap stuff. Sharpening igs? Know what you want and how it works and make your own.
Almost 50 years ago an old man told me, it is not the amount of tools that makes a craftsman, it is the knowledge to use to what you have that makes you a craftsman. I did not listen very well, I have bought a lot of tools that I wanted but did not need. Sure I used them, but I did not need them.
Check out garage and estate sales, even some pawn shops used have tools at reasonable prices. Some will be imported trash, after a while you will start to recognize the good from the bad. Consider the "bad as an investment in knowledge".