High Lipoprotein (a)

I've had a history of borderline cholesterol. Age about 50 and generally active life style with activities like brisk walking, Tennis (2-3 times week). Weekly steps are in the range of 50-65K. But because my father died of cardiac arrest at the age of 62 and history of borderline cholesterol, doctor and a specialist (not cardiologist) prescribed me Statins (5mg only). I was hesitant because of side effects but professionals instilled fear in me (rightly so probably) that I started the medication 3 months ago and my overall cholesterol, LDLs and triglycerides came down significantly. Doctor suggested to check my Lipoprotein (a), although I got it checked after taking statin for 2 months, it came quite high, almost 3 times of max reference limit. I am concerned with that. Couple of questions, if someone had similar case:
1. Is it possible that statin increased my Lipo (a) numbers?
2. I've been told that this is genetic and I can't anything about it and this means I am at a higher risk than someone within range, what should be my next steps? Is to get calcium score and then finally angiogram to see how much blocking I have at the moment? Its taking emotional toll on me that I may be sitting on a time bomb.
Thanks for help.