I REALLY need help

Guys I think I made a mistake. Some months ago I bought my first mac, everything was fine and I was enjoying it, until one day I decided to play some games not available on macos so I installed bootcamp, the process was not hard and it run really great. Some weeks passed and I wanted to download more games but i didnt had enough storage in the bootcamp partition, and i didnt want to delete the whole partition and install it again. So I simply used one of those external windows programs to add space. I was scared because some people said it could cause problems later but I still did it anyway, I didnt even save any backup of my mac (big mistake) At first nothing happened, but some minutes ago I decided I didnt want bootcamp anymore, I wasnt really using it. I deleted the partition using the bootcamp asistant. Well, my computer just turned off and it said “There is a problem with your disk” in a black screen, it turns out again like it would normally do, and for a moment I had hope, but when I put my password it just turns down with the sudden sound of the fan going on and off. I really need help with this and i am very scared, i know its something related with the disk probably. I tried to boot it in recovery mode but i dont know what to do there, I noticed that the disk in the disk utility says some weird things, like the disk only uses 1.1gb and it has 130 mb available, that doesnt make any sense because my mac has 500gb and obviously there is a lot more than just 1gb used. Please help, and dont tell me i need to do some weird thing like reinstalling the whole operative system using a usb and losing all my data🥲