Trust me, I know exactly how that feels. It's especially really bad when hair is a bigger part of your image/identity - I used to have long and flashy hairstyles before. I managed to do a decent airbrushed-combover thingy before getting on finasteride, but the initial shed made that impossible and in came the cancer patient look. (I'm a thin 6'2 guy with high cheekbones and sort of a babyface for being 24, or 23 at the time - so you can imagine it)... But biting the bullet and doing a decent buzzed/short hairstyle is kind of liberating as you don't need to think about the wind, rain and some such. Just getting to that low point and hoping that the results kick in. It's hard. Depending on how blatantly bald you look, might wanna go for it or keep it longer while waiting for the results, if it looks decent.
It's a life-long thing for one. The hair that you grow on Minoxidil is dependant on it, so if you quit the drug, you lose the hair in due time. I personally had an initial shed that started about 12 days after I had started the drug - this didn't last for a long time and I could see light at the end of the tunnel by the 2-month mark, so it was a 5-6~ -week shed.
Like I wrote above, finasteride stopped my hair loss and also brought about some minor improvements, but I do feel like Minoxidil has been the source of my regrowth so far. After that initial shed, the last month or so, I've had a remarkable amount of regrowth on the crown and on the hairline. My temples are going from NW3 to NW2 - they might actually be there already. I feel like without finasteride, Minoxidil wouldn't have been as effective as it has been for me, but yeah, I would look into it after some time of being on finasteride and monitoring the situation. I only got on Minoxidil after 9 months, as I was kind of sure I was getting slow but sure improvement/maintenance with finasteride and there were no sides to report of.
Minoxidil comes in liquid and foam, I went for the liquid because it's the most convenient to get in here and I seem to have seen people having marginally better results with it (or with a higher frequency), based on what I have personally seen and read. I was more afraid of taking it than Finasteride, because I had heard of stories about wrinkling of the face and some such. Still, I've been on it for 3 months now, not missing an application and my skin looks as good as ever. Takes about 60-90 seconds for me to apply, so think of it as brushing your teeth. Not that much of a commitment.
Hang in there man!