@ddon I wanted chemo to finish but I felt very low. Friends said the same things to me as yours have. My family said nothing, there was no celebration cake, card, balloons or flowers. It's a very difficult time for many.
Have you got a counsellor? If not I would suggest getting an appointment with one now, and setting it for as soon as you feel you can manage it.
A survivorship plan is a good idea and a great help to move through this period. Talk to your GP about a care plan. You'll get five subsidised allied health visits. Talk to the member of your team with whom you feel comfortable.
Many public hospitals run oncology rehab programmes, which are exercise and education. It was the first thing I did and it was excellent. But there are waiting lists, so get onto it now.
If you need help with your diet, get a referral to a dietician. Etc! Having a plan can help tremendously to feel in control after a lengthy period of actually being quite passive when things are done 'to' you.
Like everything else this feeling will pass. It is horrible though, I do remember. So I'm sending you a big virtual hug lovely. K xox