Ian Wickham wrote:Only you can answer that question by looking at other skiers around you and make the comparison where you stand ability wise
Definitely don't look at the skiers around you as 80% of them are rubbish.
In my opinion, you should continue lessons and ideally you want to be doing more than one week a year but I understand that may not be possible. If you can do 2 weeks I would do lessons for the first and use the second to improve on your own by practicing what you have learned.