Hey man, I know the feeling.
Like it does feel very tough to make friends and to form those connections with people. But your main point to take away from this right now is 'You should talk more.'
This shows that people are interested in continuing a conversation with you or even forming a friendship.
Fear is self-imposed, so if we can create it, we can destroy it at the same time.
So don't let your overthinking and fear stop you from forming what could potentially be the best friendships and relationships of your life.
God bless.
Anass