I'm not a big fan of adult disposable diapers or towelling nappy squares. The problem is getting them snug and comfy. To get the adsorbancy I need to wear many layers of squares at once - but then there are so many layers pinning them is difficult through all those layers. More than once pins have sprung open allowing a leak. Disposable diapers with tapes have the same problem of not cocooning my buttocks and privates. Pull-ups are not much better and just don't give a sense of security. Imagine peeing yourself and it all runs out the edges, or worse, sitting down in your poo and it squidges out the edges of the diaper.
The pinning problem you describe may be the reason I have loved and been addicted to wearing and going potty in my diapers for so many decades. Mom refused to let me diaper myself as I continued to wet my bed nightly well in to my late teens because she had no confidence that I could do it myself without hurting myself or doing such a lousy job of pinning my diapers that my bed would be wet in the morning. In those times, we only had single layer cloth diapers and by the time I was 14-17 I needed several layers of diapers folded in the right manner and pinning so many together was hard to do, especially by myself. So mom did all the diapering, and of course being a good mom she wanted to make sure I was nice and clean before pinning my diapers on. Since I was a boy with much on his mind I was not always that good at wiping myself and brown streaks were common on my undies, despite mom's frequent comments about my poor potty practices. I also tended to leak a few drops inside my undies and they were always a little yellow, again causing mom to be all the more careful and thorough cleaning me during my nightly diapering. So needless to say I would become aroused by her thoroughness, cleaning my bottom including my anus, holding my pee-pee and slowly wiping it and all my pubic hair until by the time she was ready to bring my diapers up and over my pee-pee, I was so aroused she would have to tell me to calm down and wait until she finished and left and then if I couldn't get to sleep, I should take care of myself, which by then I knew what she meant and would masturbate under my diapers after she turned off the lights and left me. Many decades later, after meeting my fiancee to be, letting her know that I wore diapers and rubber pants and how I wet myself all the time, I went into great detail about my childhood, slow potty training, bedwetting throughout my teens and diapered every night well into my late teens by mom I confessed that I became very aroused and erect when mom diapered me and would play with my pee-pee after. She was really interested in my story and maybe even a little turned on. So was I by then. We were in my car after leaving the restaurant to take her home when she asked me if I had wet myself at dinner. I confessed that I had gone potty several times while we were having dinner and talking about my diapers and that I had also gotten a little erection after i had wet. She laughed at that and asked if I would show her my diapers and rubber pants so I loosened my trousers and pulled them down to my feet, sitting next to her in just my soaked diapers rubber pants. She examined me pretty closely, pulled the front of my rubber pants down and placed her hand on the front of my wet diapers and said “wow, you really are wearing real diaper and they're soaked. Shit, I had no idea anyone does this. And look, your diaper pins are huge with pink ducky heads. Do you ever hurt yourself when you pin your diapers on. It must be difficult, no wonder you mom insisted on diapering you. Is your dick hard right now, I bet it is.” And then her hand went under my wet diapers until she found me pee-pee which by then was so hard it was painful pressed against my tight diapers and rubber pants and she whispered in my ear, baby, would you like mommy to take care of you? I think you want me too don't you? “ And then she unpinned one side of my diaper, and played with my pee-pee until I shot my full load into my diaper. Well after that, she tried to pin my diapers back but couldn't and suggested we go to my place rather than hers so she could change my wet diapers. We both hugged and kissed and I told her ”sweetie, I hope this goes on forever, I love you so much." And she replied “we'll see baby, but I do think you need your mommy to take care of you and pin those diapees on you every night. ”