Doubts about faith and certainty

I Heard that you need to have 100%yaqeen / certainty to be a muslim. I suspect i suffer from ocd and i get waswas from time to time. I fear that my yaqeen is not where it should be and that i may be a kafir. I am afraid that i do not have full conviction and that my waswas may be affecting me. I have this constant battle of trying to make sure that my certainty is 100% complete and that there should be no room for doubts or else i am in danger. Unfortunately this is how my mind has been working. I do not want to be like the agnostics who are unsure of what they believe and i always find myself trying to remove any doubts that may come. I do not understand this rapid number of waswas and why i can't be normal. I only wish to live a normal life as a muslim and sometimes it feels like something is trying to pull me out of islam. At times it gets so bad that when i tell other people i am a muslim, my mind asks me things like: "but are you really a muslim, and do you really believe". I do not know what to do to this issue and these questions as they seem to be different than waswas. I always get mixed up in my head for days or even weeks and i try to make sure my intentions and certainty is always pure and real. I do not know how else to explain this issue but my mind seems to have developed a big intolerance for anything that is waswas and my mood immediately shifts,and is start questioning who i really am and things like my yaqeen