The thing I'm trying to drum into myself more than anything (I so hope I don't forget it when / if the time comes ) is 'Don't stretch the glide'. The temptation must be overwhelming if you think you're just a bit short and very many experienced pilots have succumbed to it.
Far better to land short, wherever it is, than dive in from a stall / spin.
Ugh. Gives me the shivers just to think of it.
QDM