We started feb 1 to plan a trip spring break, because my dd is graduating with BA this year and the only time she can go, we originally thought may because she would have time between BA and MA, but she got notice it was only 2 days so we had to change.
We settled on days and booked resort feb 11 for a march 12 date of arrival. Then I started with ressies. I check everyday, multiple times a day and take what I can. Within one week I got
CRT for lunch
BOG late night
Chef mickeys, first late night then moved to late dinner
Akershus for breakfast for Anna and Elsa m&g mostly
1900 park fare for dinner
Tusker house breakfast
Hoop dee doo review
Garden grill I think in Epcot dinner
Mama meal rose fantastic party dinner
50 prime time dinner
Bog FP lunch
Whispering canyon dinner
And one more but I can not remember.
The only one that is way out of our usual time frame is the bog, but we got it and I keep trying to see if I can move it, if not we may just have to do dessert but it was the only place my dd wants.
What I have not been able to get is T. Rex and BBB for a specific day. So yes there is hope, you need to be flexible with times, you need to be aggressive in your search and you need to relax, last weekend I was on site and got all excited because I found two bog at a great time and started to book, when I noticed the ressies where not for a month out but for that same day, so they do show up even on line for the same day. If I was you and you have not gotten them by the time you leave, check each day you are down there, hopefully you have park hoppers and each morning check to see if there are any cancellations.
Good luck and have a great time.