5 logos and already has an eye for design... No you don't. Like everyone else this takes time n effort and it takes more than slapping a font and a mark on the side. Confidence is good, too much isn't, specially when you're just starting out, a very common mistake we all have made. We start out doing it thinking it's no big deal because it's a logo and think we're hot shit, happens all the time with newbies that have no design experience, all. the. time. I mean shit I thought that too when I first started. You have an eye for design? Tell me how effective that pastel minty green would be in daylight on signage? Point out to what kerning is and how bad it is in your first logo? Here's the thing, if you're just starting out, don't even bother doing logos for real businesses such as your dad's till you actually get upto speed on the basics, not just pixel pushing. Do the biweekly logo battles run in the sub or use a fictional brief and get critique, and read a ton of shit. Give it a year or something before you take on real businesses. As for clients & designing, it depends, you have to read between the lines. Like say a client who made a banner for his mother's YouTube channel likely is going to pull that "I'm a designer too" card. Your dad on the other hand is conveying what he wants because he doesn't design, big difference. Your job is to give him that in the best way possible and convince him to not go with it if you feel it's not good by design provided you have some experience to back it up which I think you don't at the moment. Also there are people who may not design but have great ideas, literally everyone has ideas but only a few know yo execute it well. As a designer you're gonna have to consider everything and execute it such that it works both by design and for the client.