I realize I am actually an idiot but I didn't check how dangerous it really is before doing it. Anyway all those services seemed legit.
I sent passport id photo for kyc on skrill and paxful, and also bitcoin exchanger in estonia(EU). I picked the last one on popular site bestchange.com, it is working for 1.5 year...
Do you think I have to change passport or this is just a panic? I am thinking about this all for several days...
I also have submitted some of my ID's and passport ID photo in the projects that i have participated with because they also required KYC, which i assume that they will not use my identity for illegal. Honestly, you are not the only one who are afraid and feel unsafe because there are also a lot of people who also submitted their information to a lot of exchanges and projects.
Since you said you submitted it to a project you participating already. Just pray that they will not do anything illegal from it since it up to them now what will be the use of your id for them.
Next time be careful with your document before giving it to other people you really dont know. You can use other id for verification not passport thats very dangerous.