Hi - just  looking for some reassurance and a bit of advice if possible. It's long so if you make it thru, I appreciate you!

I currently work at a job in the city where I will hit my 10yr anni next week. My company changed hands about 6yrs ago and while the new management has its legacy folks a little nervous, my 2 (legacy) managers, who are pretty high up  have my back and been amazing. I have great love for the ppl here, our product and frankly the amount of work I have to do vs my salary. The job has decent perks and everyone is pretty easy going. 
It is typically an in office job but with Covid, we were privileged to be all sent home to work remotely. I've been home for almost a year and a half, with talk now of coming back in September.

Long story short, pre lockdown,  I was burnt out with the commute from the suburbs and having 2 kids(single mom). My anxiety made everyday an effort. I LOVE WORKING FROM HOME. I don't have to speak to anyone except for the occasional video call and emails. I can be home to make dinner and help with homework. No subway, no weather worries, no work clothes, no fake convos. 
My job is a support position,  which I don't know for sure, but I doubt would be changed to permanently remote. 
A really good friend of mine / former coworker has been working for a company the past 5yrs in a role that is fully remote. Based on my resume and her personal knowledge of my capabilities, she wants to refer me to the position that she was promoted from. It would be a small paycut 😰but not accounting for the $4k/yr I spend on my commute. 

I am very interested but scared. Maybe I need to make this change? 
Is been a while since I had to learn new systems /procedures. I've been a little bored. But will I catch on a quick as she thinks i will? She's amazing and would train me. Am I a fool for dislodging myself from 10yrs? Maybe I need to just ask my current managers if I can WAH 2 days a week and see what they say?

Ugh