It's quite likely that you haven't done this kind of overall assessment of your startup before - which is normal. It's also quite likely that there are some things that became apparent that you weren't aware of or maybe surprised you. Some examples include:
For most startups, this is pretty normal. There's no way your team is world-class in everything (or maybe anything). Your product isn't as good as you want it to be. Your numbers are way lower than you know they can be.
It's ok - you can fix it.
Except… sometimes you can't fix it with the team or product that you have. There is a chance that this exercise revealed that there is a bigger issue in two possible spots:
If this doesn't apply to you, close this task and let's move on to the next section.
Team problem: Unless you are 100% convinced that one of the team members is just a wrong fit - that it further confirmed what you've already known for a long time and just haven't dealt with - only if you're 100% sure they "have to go", don't do anything yet. We're going to realign some tasks later in this guide, so maybe they could be good at other tasks, or in another role.
Product problem: The truth is that sometimes startups launch too early - before their product does the thing it is supposed to do. I don't mean it's bug free… I mean that more times than not, it just doesn't do what it's supposed to - that there are more broken parts than working parts. If your product failed on multiple core functionality or key areas I recommend you stop working on this guide and go work on your product until it passes, then come back.
There's just no point in trying to grow your user base if the product truly doesn't work.