I'm sorry I can't really think of some self esteem boosters. If I knew I would prob attempt them myself (ok I'm lying I probably wouldn't).

I did read recently about gardening. Just little things that you enjoy basically, something to 'do', so you feel like you haven't wasted the day. I'm sorry I can't elaborate.

I'm sure you DO have lots to offer, though, that's just the low self esteem talking... you can't see you for who you really are.

Oh and I relate so much to you, worrying when nobody replies, or it takes forever. You start thinking "it's me".. *hugs* x