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One of the most important things in the video is the light. Try to have more light and you will see how the quality will be much better. For example me I use an old soviet lamp, or mostly try to record in the day time in front of a window. Or you can try outside if it's possible. If it's have to be inside, you can also try the light of the smartphone, that's strong enough to make the quality better. I hope that will be helpful. I will always watch your videos and give you tips if I see something need to be improved.

I have in mind as well the sound, that's also an important part. You can use headphone, or if you are recording a bit far from the camera, you can buy a cheap michrophone. The sound is also an important part in vlogging. I have a michrophone that costed me only about $13. Called ''microphone boya'', or you can choose any similar one. The cable of that is usually very long what I like the most.

An other thing, also I can tell you that, fixing the smartphone or the camera will be very helpful, because the picture will be stable. I use also a selfie stick that costed me only $1. So, I fix it somehow and put in it the phone and it's helping me that way as well.

Those are all tips for now. ☺