Please give me the basic proof that Islam isn’t real

I was raised Muslim and while I grew up in a pretty progressive family/household, my family is still religious. I was until about the age of 18. I haven’t been practicing for about 10 years but I still can’t bring myself to really believe God/islam isn’t real mostly because I’m scared of being wrong and ending up in hell after I die (It sounds silly I know). I have read up and looked at things that have made me not really believe in Islam but I just want something that 100% proves to me it’s not real so I can live without guilt or worry.