You must have a source of income if you must succeed in your holdings.
This is self-explanatory, and take note that this doesn't apply only to investing, but to everyday lives as well.
After you graduate from college, find a source of income already, and don't be a burden to other people. I mean if you want to invest then you must have an income source for you to have some funds to be used in investing. What do you want? You will ask favor from your family to give you money that will be used in investing? Kind of funny.
Most people that have sold their Bitcoin holdings at a loss or at an average price actually have the patience but don't have the knowledge of how to hold, because a good holder must be aware that he needs a source of income for him to be able to consolidate to his holdings.
It has happened to me severally, I have been able to hold now, since I started working as a merchandiser with Guinness, I think most times, experience is the best teacher.
You don't need knowledge if you want to hold.
What you need is self-control.
TBH, even a newbie out there who has little to no knowledge about Bitcoin can hold as well. Many investors out there know everything about Bitcoin, but they can't hold because they can't control their urge to sell whenever they see Bitcoin up double-digits in just a few weeks. Self-control for me is more important for me, and as for the source of income, we all need it.