Trail running is hard work and running gains are not received instantly. This is where that patience and self control are needed. Start with short trail runs and as the strength and endurance increase, the runs become easier. Hate to carry anything. If you are going to be running more than an hour, your body needs water and other fuel.
Studies show that carrying extra weight increases the gains from the run.
Use that weight as hydration and fuel as well as getting stronger. Consider alternatives such as stashing fluids. Run out and back where you can drink half a bottle and stash the rest to drink on return. There are many types of carriers for water. Try them on in the store to see which you think would be comfortable while running 6.