Revolved Triangle pose can be a challenge for beginners and for people with tight hamstrings. If this is true for you, please be patient as you gain flexibility.
If you feel "crunched up" when practicing Revolved Triangle, bring your torso up until it feels better. Then place your hand on your shin bone or use a block (see below).
If it is difficult for you to reach down with your hand, try using a yoga block to allow your lower hand to rest higher. It will keep your torso up and help you reach the desired alignments of this asana. Place the block to the inside of your front foot and rest your hand on it. If you do not have a block, place your hand on your shin bone or your thigh.