Can you pull the TT with your truck? The short answer is yes but you will most likely be at or over the max cargo capacity of your truck.
Some folk have an inordinate fear of towing with anything less than a Gonzo mega-power beast; other just get in and adapt.
According to the CAT scales I am pulling a 6200 lb loaded TT with my F-150 E-Boost. I am at my Max Cargo limit. I have had no issues in the last 17,000 mile in the Rockies or on the flat.
Buying a trailer is major investment. My standard advice to the first timer is to Rent a TT similar in weight and floor plan to what you think you want.
A week or ten days on the road will tell you a lot and answer many questions.
I also help eliminate buyers remorse because you know what to expect.