I can only speak from my own experience. I started vaping in order to cut down on smoking. I went to a local vape shop and talked to the sales clerk. He hooked me up with a small tank, pencil style battery, and a bottle of juice. I received no satisfaction at all and soon gave up on vaping. About a year later I went to the same shop and talked with a different clerk and explained what I wanted. He was very knowledgeable on the gear and juices. We spent at least 30 chatting and he pointed out numerous mods and tanks. He finally ask what I had used and made a couple great recommendations. After we picked out the gear we started on the ejuice. When I finally picked out the gear and juice he helped me put it all together and showed me how to use it. Due to the new regs the shops can no longer do a lot of this. Anyway, over a period of about a year and a half we became good friends. I digress, After vaping and smoking for about a month I set a date, my birthday, and on that date, I quit smoking. The good folks on this website have been a big help with just more than vaping.
I would recommend that you get your father to go with you to a local shop and pick up a starter set. and like mentioned above have him come to the forum and learn how to use the gear. Sorry I got so long-winded.
Jerry