is this ‘niche’ enough??

Hey there, have been thinking hard about my niche and wanted to check if this is niche enough
middle aged (surely there has to be a better word for this!! so women 40-50) women, who are stay at home mothers of teens – who now find they have a bit more time on their hands and want to start getting their lives back for themselves. Family is still a focus, but they want to start making themselves a priority.
so in a nutsthell stay at home mums of teenagers who want to start doing more for themselves and their lives (maybe going back to work, starting a business, retraining, studying etc)
I have created a program to sell to them which is all about getting unstuck and moving forward.
thanks so much