Welcome to the forum. I am sorry, but I just had to laugh. You sound so much like I did a few months ago.
I had a huge collection for my crafts. I had about 500 yds of material alone along with 2 sewing machines, serger, embroidery machine and knitting machine. I had drawers and drawers of notions. I also have all my jewelry making beads and findings. I had dreams of being able to take about 1/3 of that material with me when I moved from my house into my MH. I ended up not being able to take any of the material with me. I did fill a jumbo space bag with yarn and have that. It's in my brother's storage right now until I can clear out some more storage area in my rig. I did find room for all my machines except the knitting machine which went to my sister.
Nancy and I have been emptying our houses at the same time mostly. Believe me, being able to get on this forum and discuss all your frustrations and triumphs helps so much during this process. It is very hard, emotional work. I still hate the loss of my fabric stash, but as I have been reminded here, there are fabric stores all over the country.
I am now living full time in my MH and I love it! I am at my first stop in this new life. Enjoy the shopping for your rig. I looked for months before finding the perfect floor plan for me. Looking for the right rig was a process too. I started out thinking I wanted a TT, then a 5th wheel and finally realizing I would be most comfortable in a MH. You will know what is right for you when you see it.
As Nancy said, take clearing out your apartment one day at a time. You have plenty of time before you retire. After you find the right rig for you, enjoy your trips in the meantime. I look forward to meeting you down the road somewhere.