Hi Tugadude, for this work I followed your advice here
You told me to use a needle to pierce the corner and it worked very well, I'm happy with it. You suggested angled stitch and I tried it as well. I prefer thinner thread too but the one I used here is produced near my home and the price is ridiculous, it was worth a try. https://laccioteca.it/categoria-prodotti/rocchetti-trecciati/tondi-cerati/cerati/
Yes, there is a ton of wax, I have no saddle soap but I'm a woodworker so I have plenty of beeswax ;-) . I will rub it.
Thank you for your help, it is precious to me