How to “get rid” of a problem?

Accept it first.
And how to get something that you want for so long but cannot get?
Accept that you cannot have it.
Behind such situations (like problems, unfulfilled wishes) there are dynamics that are not so obvious. Problems and unfulfilled wishes are just the surface of those dynamics. What are those dynamics?

They are either souls or energies looking for a place in your heart (looking for love, looking for a body) or they are the result of your attitude toward something (usually parents or destiny). This is what has to be accepted first and only after that comes everything else.
As an example: “I do not want to live like my parents!” Well, may be you do not have to. But to live your own life you need to accept your parents first. Or, for example, how to get rid of an unwanted relationship? The same way – accept it. Or if a child is not sure of his place in this life and cannot succeed in literally anything, there can be a lost sibling who’s soul needs to be accepted and loved. The same applies to health, relationship, work, business, money problems and so on.
Whatever stays behind of any problem and is blocking your way to success must be accepted first.