It takes practice to put in and take out a removable partial denture. It may feel a bit odd or tight for the first few weeks. But in time, you should get used to it. Never force the denture into place by biting down. This could bend or break the clasps or damage your teeth. If you have a problem with your new partial denture, talk with your dentist.
The office people and assistants must be low wage workers. They have the typical low paid, high stress lack of concern for the patient. The person who did my form did not do it well. That was evidenced in the quality of the temporary denture. The Dentist who did the extractions was the absolute best dentist I have ever seen in my 55+ years. They give you a pill to take an hour before you get there and if needed, one when you arrive. It relaxes you and one was enough for me. I was ready to go to sleep. They took me straight in and the dentist took 20 minutes numbing every tooth with a local anesthetic. <<<<