1. Look at the combo quide thread for non-TK loop combos
2. Lrn2block and lrn2mash properly
3. How to pressure with him is readily apparent with his tools. A command grab, a super cancellable high/low 6a/6b, stance follows, jc normals, +on block normals, chains, etc. Pressuring is going to take some creativity on YOUR PART once you understand his tools. There is nothing we can tell you to do if you don't understand weight you're doing it.
4. This is something every Hazama ever is always learning because there is no right answer. Once you understand chaninng and follow ups, you then must apply them ON THE FLY. To be honest, no mortal could probably play Hazama and move perfectly everytime.
Once you can do and understand these things is when we can help. Right now all you're asking us is "how do I play fighting games" after pointing at Hazama