Make a product that people want and are willing to pay for.
The product may be in what appears to be a crowded field. Identify niche opportunities or cases where an established leader is doing a poor job.
It's fine to do some consulting on the side to pay the bills. Of course it will take time away from the product you are building; just be able to recognize when it's too much and scale back consulting or turn off the spigot completely once product sales take off.
It's fine to work according to your own schedule and needs, not some idealized '100 hours/week' VC fantasy schedule.
Investors don't care about you, they care about their returns. As you don't fit the pattern of what they expect for a successful startup, they will either ignore you or make very unreasonable demands - find a co-founder, work twice as hard, follow this or that model. Ultimately, it's a waste of time at best, a loss of control and failure at worst.
Once you have cashflow, offload certain business tasks to pros who can do it better and cheaper than attempting it yourself. Hire when you have sufficient cashflow + cushion.
Take pride in what you are building, the customers you attract, and the skills you are learning.