It sounds like you have almost the right approach to these AD's. Realising that you may not be ready to start coming off them is very sensible and realistic; too many people are in a huge rush to get off them.
BUT you must take them regularly! Same time every day is best.
Fluoxetine does have quite a long half life; so will stay in your system for several days but at a reduced amount.
A brief history of my very recent experience of Fluoxetine-
I had always been very independent, fit and healthy, ready to take on anything and thrived on a bit of stress and pressure. A number of big changes occurred in my life and I didn't realise that I was beginning to struggle to cope with things.
By late 2009 I could not cope with life anymore. I had gone from a strong person to a wreck- afraid of life, crying in dark corners and thinking that I would be better off dead.
Was taken (forcibly!) to my GP. He prescribed Fluoxetine 20mg. For 6 weeks I felt worse (it was a daily battle to live), but then I started feeling a little better each day. After a few months I felt much better although tired a lot of the time. It also appeared that I was suffering from anxiety as badly as depression- CBT fixed that brilliantly, although it wouldn't have worked without the AD's too.
I stayed on the 20mgs for about 15months. Like you, I didn't want to rush to get off them; I wanted everything else to be right first, then to come of the AD's once and for ever.
GP suggested weaning me off them by just taking 20mg every other day. This did NOT work! After 2 weeks I felt dreadful. I worked out my own plan and stuck with it. Been off them for 6 weeks now, and I'm feeling ok. Have the occasional dip (mainly when my rubbish left knee stops me doing everything that I love)but doesn't everybody? I worry during these dips that I have "learnt" how to be depressed, but I try not to dwell on that.
My plan for weaning was:
For 2 months I took 20mg for 2 days, but missed the third day.
After 2 months I missed 2 days and took 20mg on the third day.
After 4 months I stopped.
This all required some discipline- I marked up a year planner to help.
The GP's idea of every other day was much too fast for me. Hope some of that may help.
Feel free to email me if you have any questions or just want a listening ear.