Hey there Leo8!
You've hit the nail on the head!
Yes, it is a very big leap into the unknown, and yes it is very scary! Though it actually isn't as scary as you think. Though you look at life from a new angle, you find it is not really any different.
It seems you are coming to some realisations about yourself, perhaps even getting some clarity. And that is good. Just take deep breaths and think things through. You ask "Is that part important?" and "am I wanting too much?".
Only you can answer the first question. For me, I always thought that it wasn't important, that what I had around me was what was important, but then it slowly ate at me from the inside, proving that it was more important - to me - than I had admitted. You should think hard about what you are not being true to yourself about, and just how important it is to you.
As for "am I wanting to much?". Just remember, it is YOUR life, you only get one. what you want for yourself - you own that. You own the right to want what you want, and have what you want. Yes, you do need to be considerate of those around you - if it impacts on them, but you should always seek and strive for the things that you want. Denying what you want, and fulfillment along with it, may only lead to resentment and worse.
So now that I've "come out", and pretty much on the road to good health, I'm about to head off overseas, to backpack around Europe for 6 months. This is something I had wanted to do for a long time. Now i'm in a position to do so. Of course, there is an impact on my loved ones. Especially my daughter who is 12 this year.
It'll be great for my confidence, self esteem, and mental health, but I had to consider the impact on her, and I also needed to consider my own health. After battling depression, and talking it through with her, I feel comfortable in going.
We have to make some big decisions in life, the way we handle these decisions only help us learn to be better versions of ourselves.
I'll be around for a few weeks yet, but then only intermittent whilst travelling. Good luck!