I have a hard time eating with my dentures. Any recommendations?

Rita are living alone independently? If you have a relative or caregiver ask them to help you with this problem. Dental work is very expensive so you have a right to get it done properly

You must go back to your dentist and tell him/her your new denture is not fitting well. S/he may be able to adjust it, or have it adjusted. Unfortunately it can be difficult to get lower jaw dentures to sit firmly. Ask if there is a fixative your dentist would recommend, perhaps?

Also, if this is a very new set, or if you have recently had teeth removed, it may take a few days for your mouth to adjust and any swelling to settle down. But pinching or pain you shouldn't just put up with. Ask for help.