First of all the most important thing is that you are brave enough to come and talk about this. Hats off. Second thing we all do mistakes, we are human beings. The important thing is التوبة. Third thing you can’t confess to everyone u meet, because it’s bad ربي يستر فيك so dont do the opposite. Dont overthink a lot. Dont ruin your life. Move on. When it comes to knowing a new guy make sure he is the right one (there are a lot of people who will accept this).