Work at your own pace. Allotmeneerting/gardening should be a pleasure rather than a chore.
Some get pleasure in growing a lot, getting the most out of every square foot, possibly with a view of self sufficiency coupled with freshness. Others take more care with a few choice things , or those they particularly like. Some like a tidy plot others don't mind it a tad ramshackle.
Everyone is different with diverse ideas of what makes a good allotment or garden. No way suits all.
After all, there is something to plant or sow or jobs to do every month of the year.
Just take your time and enjoy what you achieve.