The first thing I would ask is, why are you struggling to practice? Is the room you are playing in cold? Does the piano not sound very nice? Are you uncomfortable where you are practising? Is someone forcing you to practice when you don’t want to? Why are you struggling to practice? More information is needed here.
The second thing I would ask is, why can you only practice 10 minutes a day? Can you literally not find more than 10 minutes out of your day to sit at the piano? The very best way to practice for longer periods is to make practice a priority in your day, putting it above some other things that are less important to you. It’s all a matter of priority.
‘How do I find the way to practice more?’ Well, where’s there’s a will, there’s a way. It’s really that simple. Put the piano somewhere that you have to pass frequently or make it easier to get to, or leave your music on the piano so you can just sit down and practice a little bit here and there. Instead of thinking that you have to sit at the piano for a longer period than feels comfortable to you, practice tiny sections for a minute or two and then go off and do something else but do this frequently.
‘How to make practising more enjoyable?’ Do you not enjoy the piano? If so, why are you trying to learn how to play it? Are you not enjoying the music you are being given? Do you have the belief that you would love to play the piano but don’t actually like the practice? If so, find another hobby because playing the piano and practising the piano are one and the same thing. If you don’t like practice, you will never really enjoy playing the piano.
Perhaps a little more information about you would make an answer slightly easier to give. How old are you? Why are you learning the piano? Have you got a nice piano? What motivated you to begin learning? All these things will allow others to answer your questions in a more helpful manner because I have to say, my first reaction to your post was, ‘Why are they learning the piano at all if they feel this way about practice?’
For now, I am mostly believing that either someone is forcing you to learn when you really would prefer not to, or you have unrealistic expectations about what piano playing involves. Definitely need more info to answer your questions.