At age 29 ldl is 133. is it ok or problematic?

Probably not.: It depends on your HDL as well as the ldl. The ratio of ldl/hdl should be less than 3. You certainly can improve this with diet.

Depends on Particles: Beyond your LDL cholesterol (133), you should have LDL particle number (LDL-P) checked. LDL cholesterol (LDL-C) is commonly used to "estimate" the number of LDL particles. However, because the amount of cholesterol carried inside LDL is so variable, LDL-C often underestimates LDL-P. When LDL-C and LDL-P differ substantially, numerous studies show cardiovascular risk tracks with LDL-P, not LDL-C.

Too high.: Cholesterol is a risk factor that affects the body with respect to time. So having an elevated LDL cholesterol at such a young age cannot be ignored. That being said, I would prefer you lowering it through diet and exercise rather than by starting medication at such a young age. But it needs to be lower.