Excellent idea, and it's clear that it will be a passion as you've held on to it for so long.
Now, what Mamianka said. We get an annoying number of questions here regarding instrumental technique from people trying to teach themselves or "learning" from online videos. The problems compound as follows:
1. The questions are always about the most fundamental matters, either of playing technique or knowledge.
2. If a fundamental problem is occurring, the entire basis of technique is shaky at best, non-existent at second-best.
3. The questions indicate that the problem or confusion has become ingrained.
4. A technique problem will have led, without the player knowing, to other incorrect techniques as the brain compensates for whatever's going wrong.
Even if you need to ask dad to match you dollar-for-dollar, pay for lessons with a decent instrumental teacher. It seems to be the way in so many things that people no longer have lessons on whatever they want to try (in my experience, it's mostly learning musical instruments and skiing!). I don't know when this ethic became normal, but the real worry is not that someone doesn't have lessons in something, but that they are able to believe they'll become any good.