You have to look at the total weight of your trailer. Fully loaded. If you upgraded your trailer and you think you need a 2500, then you probably need at least a gasser 2500. Without details of your trailer, we have no way to provide any usable commentary, but let's go with a trailer that weighs 8,000 lb and if you use a average tongue weight of 15%, that puts you at about 1,200 pounds of payload capacity required. Subtract that from the high end of PC for that type of truck, generally around 1750, and you have 550 pounds left for people, pets, hitch, gear, running boards, etc. you get the idea. In this scenario, the truck is not capable of the ask. Yes, I know they advertise up to a crazy amount of "towing capacity", but that is an unrealistic value the average person will never reach. Also note, the max PC and possible towing is a sparse Tradesman.
And anticipating the next idea, a diesel 2500 will also suffer in the towing realm due to losing almost 1/3 of its PC to the engine. My 6.4 2500 gasser can tow a lot more than any diesel when running by the numbers (taking travel trailers when proper weight distribution, don't mean any disrespect to those with diesels and for the work I know they can do). While there are uses and arguments for the 2500 diesel, if maximum towing is desired then a 3500 is generally the best tool with DRW for 5th wheels.
Send your TT specs and the team here can help you out.