If you ever have doubts about being vegan remember this:
I had 4 CABGs before stents were in wide use, 1997. After years of medication for high blood pressure, I have been on a Whole Food Plant Based (WFPB) diet since March and the evidence of my blood pressure (117/70), cholesterol (2.7) and pulse (50-60) indicate that my arteries are cleared. So, it has taken only 6 months. My doctor is gradually taking me off all the meds- diuretics and statins have gone.
I recommend that you watch the film "Forks Over Knives". It is on Netflix and YouTube. It is about global medical health research and the findings, including a massive study of 800,000 Chinese people. You might find it helpful, I did. It convinced me to go WFPB (even healthier vegan). One bloke had 27 diseases. After 6 months WFPB he was down to 1.