Help on intrusive thoughts that are disturbing and repetitive

I need some advices about unwanted intrusive thoughts. I have been living a totally normal and happy life until last week. I got random thoughts about sexual images and other unsanitary activites which are very disturbing. Those thoughts would involve around the Buddha, Bodhisattvas and other stuff that are related around the religion. Even typing this out makes me uncomfortable. Everything I do at everytime will activate my mind in some way to automatically redirects it to Buddhist-related, which is disturbing and I just want it to stop. My mind is always alerted because I'm terrified that new thoughts would pop up. There are advices that told me to ignore them thoughts and move on with my life, but then I would think about the consequences of my thoughts and stuff around it, which make my anxiety worse. I want my old life back, just living normally without any issues. I want Buddha to know that I am not disrespectful about the religion or anything, it is the random thoughts that I just cannot do anything about it. Will these thoughts lead to negative karma? I am a teenager and still live with both of my parents. They are both Buddhist and so as their relatives, so I am sure that they won't be happy listening to my problems add I can't really afford a therapy. Any help and advices would be appreciated.