This checking gear down/greens multitudinous times is interesting innit
I used to do it too...when I transitioned from the BN2 to the C402 with close to 2000 hrs fixed undercarriage time I used to check the undercarriage was down about 5 times between selecting it and landing. It appears twice on my Bo checklist and once in the 767 landing checklist.
It's just healthy paranoia when short of experience but don't let it distract you from flying an accurate approach.
Bonanzas have a reputation for being prone to gear up instead of flaps after landing...I suspect this is as much a case of there are more Bonanzas flying than any other se retractable as the reversed gear/flap control layout...but I still wait until I am down to a fairly slow taxiing speed before saying to myself "Flaps indentified and retracted" and positively looking at which control I am moving before moving it. It is also why no one does touch and go training in Bonanzas.
Milt which V bomber had props
I assume you flew Lincolns as well