Good luck!
I was forced out in 2012 when the only company I had ever worked for, a steel fabricator who provided some design-build services, went under. I had just under 13 years of experience and had been sealing my own drawings since 2006 (when I was added to the insurance policy). They originally brought me on to replace their aging engineer..... who, once I came on decided to work as long as he could (they laid him of is 2009 and he worked part time for the company until he passed in 2011). I started out estimating.... then running quick and dirty engineering designs.... then began working with their PE polishing up my designs... became registered and then started doing my own work for them. When I was doing the "quick and dirty" engineering designs I would be designing up to 80-100 buildings per year. Everything from stair designs... to small canopies... to warehouses.... to 3 story buildings. Nothing much over 3 stories (maybe the occasional 5 story building).
Once the company folded every scattered like rats from a sinking ship and I had my first batch of clients. I was able to step right in and design whatever I wanted.... steel, spread footing foundation systems, metal building foundations, stair designs, insulated metal panels systems etc.... I didn't have much experience in concrete and still to this day pass on those projects (wish I had more experience with those types of projects... or a partner who could smooth over my shortfalls). I have since expanded out more into wood design and engineering, but still pass on the heavy concrete projects.
If you don't have experience with this type of construction you will stick out like a soar thumb. I am currently working with an architect on a larger sized industrial building with a 2 story office (72,000 square feet). She is a nice person.... and easy to get along with.... but she came from the high end commercial/hospital sector and has no business designing this type of building. The details they selected are not the best or the most economical. I tried to tell her but she wouldn't listen. I knew the GC was going to have an issue when it came time to build. I just visited the project today. It's almost done and the site super, who has been there for 1 year, has yet to see her step one foot on the project and has been complaining about the details since day one. In this instance, it's easy to see that she is out of her comfort zone.
If you don't have the experience, the sub contractors are going to call you out. That's fine, if you can prove that the sub contractor doesn't know what's he's talking about....but when a steel fabricator comes in who knows what they are doing, and you are out of your comfort zone, they may just call you out.... and have the technical background to prove you wrong.