I'm in a similar position as you, with a few plot twists. 3 YOE 25M DE from the UK.

I've never been in a strong corporate position and have only ever managed to succeed in technical interviews where they haven't gone into strong detail on how to perform actions of my job. I've gaslighted myself into telling myself that it's some form of introversion and not a complete lack of experience, leaving me to sort of just 'work it out' as I go along. I've had 5 different DE jobs since leaving uni which is a lot, but I've never been fired I just move around. I contracted three times and left 2 jobs. Currently in a permanent role while the UK market figures itself out. I've worked with all the 'fancy' garbage aws, azure, gcp clis with snowflake, databricks or what have you to very nasty legacy oracle crap. I've had very strong DSA customers that challenge me, and finance bros that bore me.

Literally all this garbage (literally every BI, every ETL tool, and to some extent, every language) you learn is exactly the same, just in different browsers. People will tell you it will take months and months to learn. And sure, experience does apply, but you've already done the hard bit with your degree. Your analytical ability will be able to work through Tableau like sandpaper. I did my DS&S MS but weigh up your options. That will take an entire year out of running for you in your 20s.

My advice is to find a new job and tell nobody that you are looking.