N13 scr pro star

I just purchased a 2015 pro star n13scr international. I’ve heard all the stories about the maxxF13 and also international. Money wasn’t all that great. I’m an owner operator with my own business. This is my first truck I ever bought. It was at a decent price. I’ve spoken with a few techs from international they gave me insight on the engine. What I want to know is
1.the n13 is it the maxxF13?
2. what can I do to prevent from all the breakdowns that the international has?
3. Would this investment cause me to go out of business. Just reading the articles it has kinda nervous. I don’t know why I didn’t do my research before buying but didn’t have to much money to really play with.
4. Would it be hard finding parts and techs to work on the N13
5.what could I do to upgrade the engine to perform way better than ever?

I really need real advices man, I left the streets to change my life I know this wasn’t the greatest investment I’ve never had a pops to show me the ropes im just learning as I go. No asking for a dad just asking for real advices on this.
Please thanks fellas

 

Thanks y’all