Retired in January 2018. $2000 per year additional RRSP room prior to 1996. $38000. Contribution in Feb 2018. Can I claim for 2017 or at all

The $38000 - $2000 per year prior to 1996, is additional RRSP room. I've contributed $38000 to an RRSP in February 2018. The rules indicate I get this extra room upon my retirement (Jan 2018). The additional RRSP room does not impact my normal contribution room. How do I deal with this using Turbo Tax?