It is really early days to do that,but something perhaps to look forward too when you feel stronger.
I lost my husband and determined to try and live my life for him, including travelling or doing things he would have liked to do, being his eyes on the world if you get what i mean.The first time i wrote everything down like a diary letter -how frightened i was at the airport,how much i missed him but how beautiful the sun on the rocks, the rainbow in the waterfall was etc etc.So in looking for and at things to write as a description for him i was also seeing much more and appreciating much more myself and creating positive memorys that i can call on when i have periods of anxiety or depression.
But also my mum, who i lost many years before that, would i think be glad i had seen things she would have liked to see too, and as a mum myself i would like to think my daughters will also have that opportunity in their lives at some point.
So maybe, even just planning, including things in your itinery that your mum would have appreciated might give you strength and confidence to do it later on and bring you some comfort after you get back.