Which one to pick? They're all promising - I will not promote

A lot of people there looking for a project to work on and have 0 ideas, but I get ideas ....... all the time.

And from the 100 ideas I have, 3 seem to be quite promising, each for a different reason.

Here's more about these project ideas:

1- The first is simply a delivery app just for my city. And even though this seems like a dull idea, I'm pretty sure it's very fruitful. The reason for that is because A- there's no competitor here yet B- my home city has high consuming traffic and relatively rich C- It's a pain point that both the people and the markets/reautrants have because they still "call" and describe the address and stuff, and most of all I feel confident about it because I know how to market it, I can physically walk to people and get customers even

2- The second is an app that I use to manage my personal life, I won't share much about it but even that it's only 35% done, it's actually having a HUGE impact on my daily life, so even though the market seems oversaturated with this stuff, this one probably might stand up (I can be totally biased ofc)

3- The third app is in the medical field, I am pretty sure it has great potential in my country specifically, and actually I already have my first user who I contacted and turned out he was looking just for my solution, he pays happily 60$ a month

So as you see, every one has clear strength points. I am taking some time to recover health wise first because I've been feeling not very well and stressed, but after that I wanna pick one of them and push for it. Any ideas on which and how to select?

Thank you in advance