Need help about talking to parents about my condition?

[Cheecks777]

so i posted a question awhile ago asking if i may have OCD or an anxiety disorder and well it's been bugging me and i really want to get checked and see if i do by a professional but my mom just ignores it and tells me im just going crazy and letting it get into my head when really im just tired of it. i feel like im losing most of my friends because im always paranoid and worried about whatever is in my head at the moment they say im really nervous and paranoid all the time and i feel like im becoming no fun anymore because all these negative thoughts are keeping me from being the happy, cheerful, and the talkative person i use to be. Now i feel like i can be in a room full of people and still feel all alone because no one understands me..i just want to live my life to the fullest without this stress and paranoia and fears i have of life..im just tired of thinking too much about things that shouldn't even have to be worried about. i just want to be able to relax and chill out for once and to get rid of this anxiety i have that's keeping me from being a happy/calm person and enjoying life..i pray to god to help me and i still have faith..but it's only getting worse. im i just overreacting and should i just let it go?? or should i just convince her into letting me get checked??but then i don't know how to do that because she like 100% avoiding it and is arguing with me so much about it when i bring it up..she doesn't understand how it's affecting me because she is always yelling and it just puts me in the mood where i'll scream back but i just can't get my feelings out that im losing my friends because i just don't know how to say it to her and it's hard for me to say because it's embarrassing.im just scared i might just lose my friends totally and just lose my mind even more from being so alone.. she doesn't want to believe i have a problem but i feel so lonely and depress now because of how it's affecting my social life..:/

anyone been through this and can help me or any advice on what i should do? and to the people that answer thank you so much i know it may seem like alot to read and i thank you for giving up your time.