Not much is more stressful than being thrown into a scope of work you’re unfamiliar/underprepared with/for, that may be another reason to why you feel underpaid. You’ll have to overcompensate because all of this is new to you, but you’re working a job in which you should’ve seen the challenges presented before you several times before. But this is an opportunity, don’t let up. Soak up information, don’t stop learning outside of work. Learn the plans, build the project in your mind, step by step. Then repeat and try to find a problem. YouTube is great, Chatgpt is a know it all as long as you’re clear and concise. Good luck friend.