There is no doubt that the Mangal dosha can cause issues related to marriage matters, but how to check, if you are really Manglik. There are calculators/ other free tools available to check Mangal dosha,But if you know actual facts about Mangal Dosha and what to do, even if you are Manglik,the problem of 75% of people will be resolved.

https://kundli-matching.com/blogs/what-to-do-for-mangal-dosha/