Well like the thread says what is the best way to pray the Jesus prayer?
Under the loving and fruitful guidance of your Spiritual Father.
This is not a 'do it yourself' project!
Since I'm not an Orthodox ie. I don't have a Spiritual Father, shoud I avoid praying it?
Welcome to the forum (in case I have not already welcomed you!)
What I would do is: speak to an Orthodox priest about this issue, preferably the one that will be catechizing you and bringing you up in the Faith.
The Faith is all about relationships.....your relationship with God and your relationship with everyone else. Therefore, as you adopt elements of the Faith you find helpful such as the Jesus Prayer, it is a warping of the Faith to then avoid relationships and try to foster growth as a Christian by going it alone.
Now, you have enough exposure of the Orthodox Faith to learn about things like the Jesus Prayer, and you can sense the Truth that is here. I urge you to follow this Truth all the way home, and ask the advice of an Orthodox priest on this topic.