Need more patience, how do I get it?

Find a living arrangement that will fit into both you and your mother's long range plans. Talk with her about POA, etc. Help her downsize and declutter and encourage alternative ways for her to maintain her "independence". Set up her meds with reminders and check out the microwave dinners. It is a focus on the long range goal for safety for her and peace of mind for you and your boyfriend. Start checking out all the available services in your area for future reference.

Well first I would say, you really don't want your mom living with you, as you will go even more crazy than you are now. Plus it would probably jeopardize your relationship with your boyfriend.
Your mom really needs to live in an assisted living facility, with the option of memory care as time goes by. That would be better for not only her, but you as well, because as you are all to aware of dementia only gets worse never better.
And as far as patience goes, the only way we can ever get more of it, is by going through tough times, and coming out on the other end. So be careful what you wish for.

How does your boyfriend feel about your Mother moving in? Just curious, as caregiving can be a lonely road & sometimes other relationships get sidelined.

Having a temporary houseguest can be stressful - but is temporary. Adding a permanent member to your household, that has serious & progressive health issues, is a massive change. Have you discussed it?

Patience is giving, by going througha circumstance or challenges in life. When your uncomfortable, agitated, losing your cool, frustrated, feeling like quitting, is when the seed of Patience is planted. Some people go through this season of life with no help or support and only can pray through this situation, but you have to stay diligent and take one day at a time, 1 hour at a time, whatever it takes. Learn to breathe, be able to step away from the situation for a moment, when you get frustrated, and reinsert yourself when your calm. There are books, classes, mentors, and help groups to help you through these difficult times. I pray for you and your family. Be strong your never alone. Just open your eyes, and communicate.

If you are concerned about having no patience NOW, be aware that you will need much MUCH MORE PATIENCE if you expect to take care of your mother in your own residence.

For your sake AND HERS, seek out assisted living residences in your area and see what’s available.

Dementia is progressive- she will not get easier to manage.

It will be easier for you to convince her to move to a “place of her own” if you find her a nice room where she will be supervised and observed 24/7.

Find a place where you can visit often, maybe for a few minutes every day after she gets used to things.

In this life we can only do our best on behalf of our dear ones. We need to find out what we can do that will allow them to be safe and comfortable. We cannot guarantee them a “long time”, and it is not always the best idea to live with them with that idea in mind.

Maybe you an make good decisions for your mom by backing off the idea of moving in with you while you find out all you can about residential care in your area.

My own mother lived with me for 9 TERRIBLE MONTHS, and after that moved to a residential care center where she lived for 5 1/2 wonderful years.

Please consider other options before doing something that may not be the best for you or your mother.