thats great. based on my experience while learning, free mounting will really took months before you can effortlessly do it.
this is my progress from learning up to now: (2013-2017, so that youll have an idea)
i started from a 16inch china-made uni. took me a total of 8 hours, 1 to 3 hrs per day, before i can finally balance and pedal on my uni
took me 2months before i can completely feel and maneuver my 16inch uni. and another 2 months to learn uni basics like free mounting, idling, hopping, forward, backward and some simple tricks for me to be able to maneuver my uni more easily.
then i bought nimbus 24inch muni. i say it took me 2 years before i can say i have my full control in it, because i gain some muscle on that two years
and lately, i bought a 36er nimbus uni. this is totally a real adjustment because again, i need to gain more muscle to be able to full control it. im only like 5feet 2inches tall so its more hardwork. took me 20min to adjust on riding forward. but it took me a month before i can finally free mount it with ease and to maneuver it better. and as for now, though i can ride it forward, backwards, and do little hopping and idling, like you, im still working to free mount effortlessly on this big wheel, like how i do on my 24inch uni.
and also, i learned the hardway, so i really appreciate people who are learning to ride a uni. because its really hard physically and mentally, but really rewarding once you learn even the simplest technique.
so, always be careful and ofcourse have fun!!! im a sport enthusiast, and to be honest, this uni addiction is lasting longer than i imagine it to be, compared to other sports and or hobbies i do.