Sig 365 might not be a bad choice. I would recommend some good instruction and regular range time, it’s fun. Actually, I find shooting a stress reliever. I would also recommend a second pistol in .22, it’s cheap to shoot and will help with flinch and proper aim exc., you can shoot to your hearts content for very little $. You can then take what you have learned from shooting the .22 and carry that over to your larger caliber pistol. I personally love the Walther PPQ 9mm, fits the hand like a glove and has an excellent trigger with a very short reset, walther also makes .22’s very close to their full size models.