Can I be autistic?

I have some signs of autism, and since it’s a spectrum, idk if I am whether autistic or not

I am a pretty socially awkward dude, I often find it hard to initiate a conversation with people, even with my close family, I usually wait for someone to talk to me first. But I don’t have trouble with back and forth conversations tho, I can talk with people normally, but sometimes I feel the conversations don’t flow naturally and might find it hard to know what to say. I can read social cues easily and understand people intentions or emotions pretty well since a child, and I don’t struggle with nonverbal communication. I used to have lot of friends at school to talk with, I love being around group of friends to talk and discuss, usually I find talking with them naturally. But as I grow up, I just be so shy and awkward person, I can’t make friends or maintain my relationships. Sometimes I just don’t know what to say to some of my acquaintance and might lose them. And about repetitive behaviours and sensory stuff, I don’t do any routines or repetitive behaviors, I also don’t have any problem with my senses. But I do stim sometimes like shaking legs, and I fidget items quiet a lot. But I do get zoom in with some details, and get super interest about it for a short time, often a few minutes, but I can still control it and recognize sights of other things. Idk can I be autistic?