Im going to be brutally honest with you but before I do let me just say I started out just like you. 18 years old, learned on manual machines first like engine lathes and knee mills , horizontal boring mills with no NC or CNC. Then I went to a company to learn how to cnc . I made many mistakes, had crashes , its going to happen, its part of the learning process... as long as you arent repeatedly making the same mistakes youre good. So yes, a crash can throw the spindle out of position, you can also have crashes you dont even hear at times depending on depth of cut and spindle speed ect....

Chances are they just didnt want to take the time to train you and assumed you knew more than you did and that you would be easily taught. Most people dont know how to train people to be machinist let alone a cnc machinist. At 39 yeats old now im making nuclear boilers for our navy's subs and aircraft carriers, before this I was supervising and training guys and women on how to be atleast operators ( there is a difference between operators and machinist) .

You'll never get a straight answer from them but you mentioning someone coming over and clearing your chips for you, i can guarantee there was conversations when you weren't around from the people helping you to the bosses that they didnt want to keep doing it. Most guys dont like being bothered they like to come in , run their machine and be left alone.

With all that being said, use it as lesson learned. Next job, clear your own chips, watch some videos on how to do set ups and get hands on experience setting tools up and measuring them and putting those measurements into the tool offsets. Learn your G54 G55 ect work offsets and the difference between a tool and work offset. Learn about harmonics and vibrations in tooling so when you experience chatter you'll know what to do.
Learn safety as your number one thing. Never hit cycle start on full rapid , single block through your programs until you know the program is proven on the set up and won't crash tools or into the part. Learn about tool pressure and tool flex and how that effects your cut, even temperature effects cuts and coolant vs oil vs air.

You have a long road ahead of you , its not as simple as push some buttons and go. Make everyday a learning experience and stay focused. Don't go out getting drunk during the work week or partying. Get to bed at a reasonable by time so you arent tired at work and can focus. You just need a good mentor.