How can i improve my video quality and how can i make a good intro on my videos?
Well said sir, well said!When I started making videos I did it for a large crowded niche where it was impossible for my tiny channel and my videos to compete in the search results against much larger channels.
TubeBuddy helped me as a small channel to find topics and keywords where my tiny channel could actually start competing for the top 3 spots. That started bringing traffic to my videos and channel. After that it's of course up to your videos what happen next, if people like them they may start subscribing. If they watch most of your video you get a high audience retention and YouTube may start recommend your videos giving you another way for people to find your videos and channel.
When it comes to doing a intro I would say don't. There is a reason that Netflix have a skip intro button.