klarkommen mit
to cope with
To manage a situation, task, or person; to be able to deal with something or someone.
Ich komme mit dem neuen Computerprogramm noch nicht ganz klar.
I still can't quite cope with the new computer program.

to cope / get along
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to cope with
To manage a situation, task, or person; to be able to deal with something or someone.
Ich komme mit dem neuen Computerprogramm noch nicht ganz klar.
I still can't quite cope with the new computer program.

'Klarkommen' (to cope / get along) is a separable verb. The prefix 'klar-' comes at the end of the main clause. In subordinate clauses and in the infinitive with 'zu', the verb stays together.
Er kommt mit seiner neuen Chefin nicht gut klar.
He doesn't get along well with his new boss.
'Klarkommen' (to cope / get along) is almost always used with the preposition 'mit' and the dative. You cope or get along 'mit etwas' (with something) or 'mit jemandem' (with someone).
Kommst du mit dem Lärm klar?
Can you cope with the noise?
The context tells you the exact meaning. 'Mit einer Person klarkommen' means usually to get along well with someone. 'Mit einer Sache oder Situation klarkommen' means to manage it or be able to deal with it.
Ich komme mit meinen Nachbarn sehr gut klar.
I get along very well with my neighbors.
'Klarkommen' (to cope / get along) is a very common word in spoken language and informal texts. It sounds natural and is used frequently in everyday life.
Keine Sorge, ich komme schon allein klar.
Don't worry, I'll manage on my own.
to manage / create
'schaffen' and 'klarkommen' can both mean that you deal successfully with a task or difficulty. 'schaffen' emphasizes the result: a task is finished or a goal is reached. 'klarkommen' emphasizes more whether you can deal with a situation, a task, or a problem. It often sounds colloquial. Learners may confuse the words because both fit difficult situations. If you want to say that something is completed in the end, 'schaffen' fits. If you want to say that someone is coping and managing the situation, 'klarkommen' fits.

Sie kommt bei der Arbeit gut mit dem neuen Programm klar.
She is coping well with the new program at work.
Bis morgen schaffen wir den Umzug, wenn alle mithelfen.
We will manage the move by tomorrow if everyone helps.