@MelissaHDavis your PLP page has month and year
Mine is Nov 2017
https://counter.social/@ecksmc
If you have that enabled you'll see it on profile
If not & if you kept your registration email reply when 1st signed up you can search for that in your email provider
Or if you mind any specific keywords you used in your 1st post here you could do a search for your own 1st post - introductions is usually a keyword & hashtag a lot used/use in their 1st post on sites
@MelissaHDavis the way I used was on my laptop, put welcome and my @ name, it came up quickly