Were your losses incurred this year? And did you have any Capital Gains this year?
Any Capital Losses you have incurred this year will be applied against any current year Capital Gains and reduce them first. If your losses exceed your gains, you will still not see the loss amount anywhere on this tax return.
Part 9 – Net non-deducted capital losses from 2017 return for about $1700 should have been applied for this year - where can I see that?