After years of studying crypto, developing websites or tools (for other people by the way) I decided to become a full time developer in this field and I'm all on my own in most projects.
You have got what is needed to succeed in this space ie the skills, I don't know your financial strength to finance a project, but that is secondary. What I underlined above is your greatest weakness. You can't be a one-man-squad and not get confused. You possess the skill, there are other people with the management skill, there is someone else with an idea but doesn't know how to bring it to reality. So, you need to network and organise like minds in the name of partners or team members, that is when you'll have a clear direction, either from you or your team members.
For instance, here in the forum, there is icopress, a well known and reputable promotion manager. There is BitList project, instead of being a one man army to run both the technical aspect of the project, Tryninja stepped in and the project is evolving and growing on a steady.
So I am familiar with concepts such as DeFi, NFT, DEX, Stable Coin, etc. I even built multiple projects, but I still don't know where I can join all this knowledge together and make it into a good idea, project, product or even startup.
So, I am all ears about your guidance.