How do you know you have a psychic block? What is it that you're even referring to as a psychic block? Are your only signs and symptoms that your spells don't manifest? What other phenomena do you notice?
If you think you have an energetic block, then by all means go visit an acupuncturist, although most people aren't aware of this phenomenon either.
Perhaps something else is going wrong with your casting, something unrelated to psychic/energetic blocks.
I doubt it's a psychic block. You just need to raise your energies.
Do more work on yourself, healing and empowering.
Do you take a bath or shower and cleanse yourself before spells? That's important to clear away negative or chaotic energy you've accumulated through your day. Try smudging yourself with sweetgrass and sage as well.
Also be sure to ground and pull up energy from the earth, as if your feet are the roots of a tree. Feel it wash through you. Then center and begin your spell. I do this everytime I meditate and before any spellwork.
Something also important that many people neglect is dedication.
It's really important to raise your energy before performing a spell. Everyone has their own ways. Sometimes we do it unconsciously, but if you feel "blocked" it may just be that you're not prepared.