Encrypting 2 pages of my wordpress site

I am building a wordpress site that has 2 information forms the need to be encrypted. Everything that I have read is scary because if you do it wrong you get blocked out, or you need to write code. Please lead me to instructions on how an idiot can get this done. I have purchased a ssl cert. but don’t know how to set up. Website is Canadian Meds. Remember, I am a slow learner so type slowly. Many Thanks Dave K