I do believe curses are possible. As much as I love Tarot, one of the dangers is that at times it seems to reflect back more clearly what we believe to be true, rather than what is actually true. If you sincerely believe you are cursed, the cards may reflect that, whether it's true or not. The same is true of many psychics. If you set up a strong enough thought, the majority of psychics will not be able to distinguish that thought from reality.
Other than a string of bad luck and the readings, is there an indication you have been cursed? Did someone tell you they were cursing you? Does your family have a history of metaphysical trouble of this kind? If not, it's extremely unlikely that someone has deliberately cursed you. Such people tell their victims, because telling the victim gets their fear working towards the intended goal. That's how curses work - they trigger your fears which sets up waves of negativity, emanating from you, which bounce back to you. You end up powering your own destruction. In the end, it does not matter whether the original source of your troubles comes from inside or outside, the only way to turn things around is to change the way you look at life. The answer is to get your mental powerhouse working for you instead of against you, and that part is 100% within your own control.
Let's start on the assumption that you actually have been cursed, though, because my advice will be the same, regardless. I'll start with what not to do. Don't pay anyone anything to remove the curse. It's commonly used to relieve you of money and personal responsibility, but rarely provides any relief from your troubles.It's illegal in most cities. The "psychics" who do this are experts at manipulating your emotions, and they won't stop until they suck you dry.
Even if you are able to find a witch or psychic who will volunteer to wave her wand over you, it will be meaningless unless you are willing to do whatever you can to get and stay clear and positive. I believe you have every bit as much power as any psychic. More so, because it's your life. You can put emotional energy into your recovery that no one else can match.
The first thing you have to do is detach from negative people and ideas in your life, and start focusing on the positive. When you feel that you are being drawn to something negative, when you feel deprived of something that should be yours, when people don't treat you as you feel they should, refocus your energy away from the resentment and onto something positive. There may indeed be people working against you, but there must be some people you love, trust and count on. Focus your thoughts on those people instead. They actually deserve your attention. If you have a hard time detaching, try the uncording exercise. Sometimes it works right away, sometimes it takes a couple dozen attempts before you start to feel free of the cording. I used to feel the need to do this twice daily. I now know when I've been corded and uncord only when I feel an energy drain.
In addition, try "Love Bombing". You don't even need to know who is cursing you. Just focus your thoughts on the best feelings you can remember. Pull up feelings of love, compassion, and forgiveness. Pull them together into a big ball of golden light in your heart. When you are ready, imagine that you see anyone who wishes you ill, and shrink them backwards in age until you see them as a little child. Then hand them the ball of energy, which surrounds them, and dissolves them. Then let the image go, and focus your thoughts on something positive. If you find that hard to do, then find someone to help. Start writing a list of your blessings. Watch a funny movie. Every time your mind goes back to the idea that you have suffered or that you are cursed, bring positive thoughts to mind instead. Don't leave any room for someone else's negativity to take you over.
These books are based on ideas that I believe will be helpful to you even though neither of them mentions curses:
"Why People Don't Heal" by Caroline Myss
"Controlling Others for Love and Profit" by James Roswell Quinn ("If you believe that, then you better wake up. Controlling others is not the solution - It is the problem."). Don't be thrown off by the title