Having problems alligning my sights on a compound bow?

i just bought a new martin cheetah bow ive sighted it in shooting fine BUT i cant seem to hold the bow high enough to hold steady on what im shootin at i have to raise the bow and shoot as i bring it up to allign the peep sight to my pins i want to be able to hold steady while my pins is on the target ive shot bows for 6 years and never had this problem please somebody help