The simplest method is for Ye Luo to find appropriate Cultivation Techniques and start his cultivation anew! By doing so, Ye Luo would not encounter any trouble, and with his talent, he could also quickly enhance his cultivation level. It's just akin to starting over!
The fastest way to recover his strength is for Ye Luo to explore the Spiritual Power of this Martial Realm and slowly adapt to them using his previous Cultivation Techniques! And by doing so, Ye Luo would not lose the Strength he had painstakingly cultivated before, but would gradually recover his Peak Strength as he gradually understands the Spiritual Power of the Martial Realm!
How to choose, that is a matter to consider later.
Now, Ye Luo should think about how to deal with the three enemies in front of him!