Sorry if this isn't allowed but just feeling happy about this and wanted to share

I'm pretty new (couple months) to training and realised I didn't know enough submissions from dominant positions especially mount (really just an Americana) so went to YouTube to learn an armbar to have another option to go to. Watched a 2 minute video a couple times through then practiced it on my brother and gf a few times each. Last night I was rolling with a more experienced guy who is definitely better than me and managed to lock the arm and get the tap. Feels extra good cause it felt like the first actual skillful sub I've got where it wasn't just because I'm heavier or taller and can use force or because I managed to get a guillotine when a newer person tried to take me down. Feels good bros