Grumpyvic81, I think you are LSE, if the choice is between ISTj and ESTj.

Your entire self-description was about personal achievement. An LSI would be talking more about how she could help others, serve some organization, and find a way to get the credentials to fit in. Fe/Ti vs Fi/Te.

Additionally, the things you value are the characteristics of EII’s. Loyalty, etc. An LSI would value someone who helped a stranger and could tell great, exciting stories, not someone who was loyal and obedient.