Poor you - it is a difficult time and there will be lots of ups and downs, but hopefully more ups than downs.
At least you know what you are dealing with and see it as a challenge.
I am loads older than you and my experience isn't quite the same but there are some similarities.
Firstly, I was reassured to read/hear that a 2a is still considered early stage and there is hope that there won't be a recurrence.
With me, they thought I had 1b1 squamous cell carcinoma and had rad hyst in September last year. This went well but biopsy showed had spread 1 mm into the upper vagina and they also found lymphatic vascular space invasion which I believe is microscopic cancer cells between lymph and blood vessels - no lymph nodes found. This meant it was a 2a1 (tumour was 4 and half cms). I then opted for chamoradiation plus brachy (25/4 and 2 respectively) and this all ended in January. So far so good and all clear/in remission - only problem is that I now have lymphodema with cellulitis in one leg - I am not unduly worried about that.
I had lots of convalescence following all the treatment and made sure I did lovely things - weekends away, days out, did some knitting and reading. went to health spa with friends (supportive friends and family are worth their weight in gold) - tried not to watch too much day-time TV but did rest as well. Make sure you do the things you enjoy and enjoy the things you do. When cancer comes into my mind (which is usually every day) I just bat it away in my mind as if it were a tennis ball and then forget it. Yes, there are and will be bad days but this forum is really great if you are feeling low. Also your cancer nurse can put you in touch with a psychotherapist if needed.
There are loads of people who have positive lymph nodes and have a good outcome.
As Tivoli said the chemoradiation will get rid of the little b*****s!
I am now on a phased return to work (miss my freedom though!) and everyone has been very supportive.
Looking forward to nice holidays.
Eat and sleep well and do regular exercise - do something sporty and something creative - it will give you a goal.
Lots of luck with all your treatment.