Have Been On Methrotrexate For A Year For Severe Psoriasis....at

Have been on Methrotrexate for a year for Severe Psoriasis....at point in med of 1 ML each week and Liver elevated 20 and a .2 immune system...Hemoglobin is at 8 and Hematocrit is at 28. Lost 40 lbs (5'2), hair falling out, fever, chills, stomach pains, side and back pain and completely exhausted every day...no appetite...when went to get blood work, not draw enough for blood work. Feel weaker each day and am wanting to get off Meth but not sure how. I need to be active and energized as before all this started. I am concerned that I will once again be covered with red, plaque psoriasis....Just need good, logical medical info.