It looks like we have similar plans and cautious outlook, OP, albeit with me being 3 years or so behind and needing to cater for a family of 4. I'm 37 and discovered this site earlier this year, which was a bit of a revelation.
My plan has initially also focused on paying off debt; now down to £18k mortgage and £12k loan. As posted elsewhere, I have also been contributing to S&S ISAs since 2007 and have NHS pensions that kick-in from age 60 and State Pension Age (? 67-69). I'm not contributing to a SIPP, but am now watching the funds in my ISAs more closely.
My plan is to build up a fund equivalent to £460k in today's terms, to give me £30k p/a from age 50-60 and then £20k p/a from 60-68.
It's unlikely that these market rises will continue and it will be interesting to see what this will mean for my savings, those who have similar plans and those who have "retired" in recent years. In hindsight, (?) 2010-2017 may have been a great time to FI / RE...