From my experience I would say that over thinking makes it harder. You have to imagine the object you wish to move is just an extension of your body, do you think when you move your arms and fingers to catch a ball? No you simply will it to move, just like you should with telekinesis. Arm movements with the palm facing the object could help you project your energy upon the object. This is the best advice that I can give right now.
There is the possibility that you arent fit for this kind of power, it took me a bout a month to master the art of pencil wobbling (lol). I think certain minds have more of a tendecy to psychic powers than others. Not to toot my own horn but I am incredibly intelligent, wise, creative, original, and coordinated, so it seems that this power came easier to me. You may need to change your mindset entirely if you really need this power, my best answer is to try different powers. If telekinesis isnt your thing then maybe electro or biokinesis is.
Now with the lonely part I have to say that I have only one truish friend throughout my entire life, and even then they arent the most connected as true friends should be. My point is that lonely is a mental feeling, so if you have enough control of your mind you can eliminate useless feelings like loneliness. I have lived my life with no great friends, but I dont lead a lonely life. I am confident that Im a great person, and I can accept that maybe Im not the type of person made for other people. My life is of solitude and I accept that fact, you wont die if you stay strong. Be independent, not lonely, be strong and not scarred. Good day to you.