It was like my account was forgotten in my world.

I joined my world and when I joined I ended up back at spawn with a map. I also had none of my items in my inventory. When I went back to my house I tested if my dog was still tamed my me and I couldn't stand it up. Although it was still named and the collar was still lime green. Basically Its acting like i'm a new player to the world even though i've had the world for a year and a half. By the way I play on the Nintendo Switch edition of Minecraft. It hasn't really effected anything because I didn't have my netherite armor on but it's still annoying how I have to retame all of my animals. Weirdly my hours on the world and achievements are still the same. Also weird, I can still ride my horses. I don't know if this matters but my world has a history of glitches such as: One time every entity despawned in my world. Including my armor stands which had netherite armor, so then I had to re get netherite armor. Also (This is still a glitch that happens a lot) my world will freeze for like 10+ seconds and sometimes it will happen mid fight and i'll die, because  it will only freeze me and nothing else. Please help me fix these glitches (especially the freeze one, that's really annoying) because they could potentially ruin my world.