Thank you for all your replies. I'm learning a lot from them. I think I'd move towards hiring a promising junior dev to help me with my tasks. But I'm not yet sure if I'll have the dev work fully on the consulting side or the startup side. It might depend on the type of consulting work needed.

I guess my problem is also really because I'm a one-man startup. So finding a co-founder or startup team to help me on the startup side could solve my problem. Or it might be another problem too...