What are my tactics and strategy?

To start of, I filled up the online form and then Peter's team called me in which they used a very smart tactic to say that if I don't enroll in the class as soon as possible, the class would be filled up and there will be no space left for me.

Don't let your want for it to work, overpower if the numbers work or don't. 

Maybe some or many people find "success" with those tactics but never real joy.

I have seen investors try to use this as a marketing tactic to attract tenants quickly, but it NEVER works out as planned.Tenants will start filling up makeshift swimming pools, open a part-time car wash on the lawn, and allow friends and family come over to do laundry!!

I agree with your tactic, seller motivation is key, however, glad to hear it can be done successfully with more targeted, personal letters.

Negotiation tactics, experiences, stories, ideas might be cool.

In that attempt, they ressort to all sort of tactics, including misrepresentation of factsAs the buyer, it is your responsibility to run your due diligence and verify the claims which are presented to you.It is part of the game.

While waiting, I made my first tactical mistake. 

Please read this:https://www.reuters.com/article/us-health-coronavirus-response-specialre/special-report-italy-and-south-korea-virus-outbreaks-reveal-disparity-in-deaths-and-tactics-idUSKBN20Z27P