I will say also that I have >15 years of experience programming in different languages and I've only felt a need to reach for these design concepts in the last

I will say also that I have >15 years of experience programming in different languages and I've only felt a need to reach for these design concepts in the last 2. Please don't feel like I'm talking down to you. We are the same. I don't even use these tools, and my methods are very often too long.