Water based lubes are to be used with a latex product like condoms then oil is best.
Yes, get a dildo so when your lucky dick wears out the dance can continue.
A more accurate statement would be: “A vibrator used correctly will sensitize a clitoris.”
As for veggie dildos, a zucchini or carrot can be carved down to size.
If you want to continue to grow sexually with or without a vibrator, you cannot give up on yourself.
When we aren't wet due to nerves or whatever, always use some kind of organic massage oil for all manual touching of genitals.
My advice is to stay with manual masturbation in your teens.
I see no conflict in using your oil.
One favorite way I handled this was to announce with great enthusiasm that my favorite sex toy was my massage oil.
I always do a vulva massage with oil before I use the vibe on or near my clitoris.