2023 is a long way off too but think for now I'll just focus on trying to learn bike mechanics and after I do that 117km audax- if all goes to plan, I'll try focus on the 200km audaxes. I don't think my mental belief in myself is great I'm very confident on London roads because I know if anything happens there is a bike shop nearby but when it comes to cycling in remote areas I get panicky about something going wrong with my bikeThen perhaps aim for PBP which next runs in 2023? If LEL is delayed till 2022 then you could be prepare for that. Preparation is pandemic mode is hard if new to longer distances. The usual mentoring not so readily available.
The biggest barrier to riding LEL or PBP is mental belief in yourself. That’s the first step really, having the self confidence to give it a go. There’s a million ways of convincing yourself you are not ready, or it won’t happen. But unless you try, you never know.
Learning basic bike mechanics over the next few months wouldn’t be a bad thing as part of your prep. As well as the actual skills it’ll bolster your confidence on the road.