Dear Poster,
Sometimes dreams are just dreams with no need to autopsy them.

At 25 you maybe thinking about the next 5 years and how life will be. But now no need to rush marriage.
This ring is significant to you and one day you will find a woman who you love.
But marriage is a commitment! Will you want to marry and have a family for life?
Now I am assuming your parents live separately, as you stated you live with your dad.
How did your parents model marriage for you?
Maybe the dream is telling you be careful of who you commit yourself to, as the ring was the wrong size.

Have you ever been to the dentist even as a child and had sleeping gas or a surgical procedure ever where you were sedated ? Those memories may stay with you and may not be related to your dream but are transitional states of consciousness like we have sleep cycles, these are my interpretations, but only you can say.

I see no need to worry, have good nights and good dreams!
H