I see green around people, but it looks like mist around them

I've been in touch with the paranormal since I was young and just recently I had considered opening up and having sessions with friends and family for free readings.

What are some things I should know if I decide to do this?

Any tips on connecting with spirits from a distance? (NO OUIJA BOARDS PLEASE)

I have very good intuition and am very spiritual but never considered myself a psychic. Last night I decided to connect with the universe to raise my vibration due to mercury being in retrograde. I did this practice where I close my eyes, get into a meditative state, think of a person and say “universe, tell me something I don’t know about this person”, then (in my head) I saw a vintage clock and the letters DO. I tried to go to sleep after and couldn’t, I fell asleep but kept waking up all night, I felt extremely drained and exhausted. The next day I spoke to the person I was thinking about and asked them if the clock or initials rang a bell, they said that they had just bought a vintage clock and was still in the box and that they have a cousin w/ initials DO that I hadn’t met yet.

My question is:
Can I become a psychic or is what happened to me a result of a sharp intuition?
Could my insomnia be due to the meditation ?

I think I am a new medium. I have been working to heal my lifetime of trauma since February and I have noticed some spiritual gifts that come along with it. The other night, I was listening to High by the Lighthouse Family and I felt a natural high. I felt so good and high vibrational. Then I see a post on here for people to test their intuition.

There was a sticky note on top where the poster asked for people to guess what was underneath. I noticed the book underneath said The Realm of Hungry Ghosts. I didn't want any negative energy so I clicked off. I was also listening to Pandora and a car commercial came on. The picture for the commercial was of two cars in like a grand canyon like environment. The woman speaking asked, "Do you believe in ghosts?" Then they go on to talk about the car but the same lady ended in saying something about a haunted house down the street. I was freaked out because the spirits were announcing their presence.

I saw my deceased stepdad twice in my peripheral. He was hunched over at the kitchen sink as he always did in life. He has not moved on I've noticed. He lingers. Lights flicker in the house at times and it happes when we talk about him or write about him. I saw a small dark animal shoot past fast and I felt I was imagining it (I knew deep down I wasn't). I felt tingling feelings around the crown of my head and arm.

I told my sister about this experience. The same night she asked me to grab her something from the kitchen and I bring it to her. Then she said, "I asked for my cookies too!" We had a small spat about it and as I go to get them, she claims she did tell me.

I picked the cookies up off the dining room table while still talking to her from my room. I said, "You didn't ask me for no cookies!" She then said, "Yes I did!" And I said "No you didn't!" We went back and forth twice before I noticed something was off. The voice was gravely and didn't sound like her. It was mocking like. I called out and asked if she said something and she said "No." It was weird!

It was like I had drawn these spirits to me just by feeling good and in high vibrations. Has this happened to anyone else? It was creepy!