Zuzanne,
Yes, I dive solo frequently. I don't know that there is much difference in the male vs. female solo but here is one female's opinion. By way of background I ocean dive every day as a commercial diver working on boats, so I am very comfortable in the water. That said I am still neurotic about safety when I solo dive in the Ocean for pleasure, and I do not dive deep when solo. Assuming you are going to do it regardless a few pointers from me would be...
think of every possible scenerio you can get into out there by yourself then double that and figure how you will get out of it. ie, entanglement, lost fins, stuck fin, out of air, encounter with a sea animal, reg ripped out of your mouth, etc.
Make sure your gear is in shape, don't "try it out" in the Ocean, solo. ie check your O-rings, regs, etc.
Make a check off list for BEFORE you enter the water. Make sure it is a written list, not something you memorize. I still do this before EVERY dive, and I have thousands of them.
Carry some sort of device that will allow you to signal you are in trouble, there are various ones on the market
Take a friend, even a non-diver, that doesn't mind sitting on the beach and "watching your bubbles" make sure they know your plan and when you should be surfacing, and what to do if you don't surface on time.
All that said if I were in your shoes I would be probably go to the LDS and rent some pool time to "practice" before I went solo. Seriously, 6 months is a long time between dives.
Best of Luck to you.
Leann