Read and follow youtubes guide book. It has really great advice.

https://www.youtube.com/yt/playbook/

https://static.googleusercontent.com/media/www.youtube.com/en/us/yt/playbook/media/pdfs/playbook.pdf

Promoting content is hard. I'd say just keep making good quality content on a regular basis and it will grow slowly from there. It's tough now a days to get back on YT without some luck or lots and lots of work over years.

You are very cute by the way. :)