Sti’s and I’m scared of them even tho im clear i need help

I’ve had my first sex in August 15 2024
The girl I had sex with she had some scent on her vagina and breath but I still did it
Months go by I forgot about it and I started to frequently masterbaute for some time so at Jan 26 2025 I got a skin issue down there which is not itchy or something just some thick skin and that when u touch u can feel it’s thick , and u can notice it sometimes only
When I got this it scared the shit out of me
I got an sti test , I’m clear from aids , hepatitis C and B and also syphilis
But I’m only worried about the rest
HPV and herpes
Doctors said they didn’t examine me cause The other sti’s that weren’t tested would have devoured me due to timeline
Like herpes and others
I notice new things on my penis sometimes and sometimes new feelings
Idc as long as it’s not harmful
I’m just worried a uncureable sti will show
The girl I had sex with said she’s not feeling anything unusual
I hope someone here comforts me

i tested Aids, Syphilis , Hepatitis B and C and also tested my complete blood count , im getting skin changes down there due to creams im using maybe so im scared that i can get an sti after all of this time