Can you chew gum and walk? Were you able to keep pace with others in your high school gym class when everybody did jumping jacks? Have you ever played a sport satisfactorily?
If “Yes” than you can learn to drive in a manual transmission vehicle in a short amount of time. I did. That’s all that was available when I learned. It’s not that tough.
As far a pick-up truck is concerned, I don’t thing a manual is the hot set-up, ESPECIALLY if it was used for towing or carrying heavy loads. I believe an automatic can handle towing better, particularly if it’s got a tow package with transmission cooler, etcetera.
Look for evidence of a trailer hitch and positively have a trusted mechanic check the vehicle prior to purchase, paying extra attention to the clutch/transmission or get a car with manual or an automatic truck.