Visualization
Using Visualization as means of empowering yourself, here are two simple methods to break restrictions and limitations and empower yourself with mastery and authority.

Visualization #1 – To break restrictions and limitation

See yourself bound by ropes and chains. These restraints are expressions of things, internal and external, that are holding you back.
Begin to breath deeply and relax and see this spark of energy building up in your stomach. With each breath it becomes stronger and brighter, until it begins to rise up and flow into your heart. With each breath the spark pulses and grows at your heart, building up pressure, like a pressure cooker. Keep breathing deeply and relaxing, letting that pressure build and build. If you spend 2-5 minutes doing it.
When you feel this pressure reach a peak, let it explode out from your heart area, like an exploding bomb. It shreds the ropes and breaks the chains into pieces. The piece fly away from you, out into an empty void. You are liberated and free.

Visualization #2 – To empower with sovereignty and authority and protection

this energy that just exploded out of you now also flows through your body. It fills every fiber of your being, flowing down to your toes, and up to the crown of your head, and flowing into your arms all the way into your fingertips, and circulating back before it is pumped out again, like blood through your circulatory system.
However, this energy also starts to flow out from the pores of your skin, and as it does so, it begins to shape itself into clothing around you. This clothing inspires respect, and signifies power and authority.

It could be a three piece business suit in a color that you love. It recalls to mind capable and influential business people who can manage difficult situations and resolve problems with easy. It could be a military uniform of a general or an admiral or captain. You are the top of the hierarchy. The buck stops with you. What you say is a command and people are expected to follow your orders and directives, and be attentive to your every whim and even your presence. Maybe its the robes of a King or Queen, either from history or present day, or from fantasy media, or something you envisioned and drew on a character of your own creation. It looks regal, the indication of sovereignty which commands respect, causes people to recognize your authority, and submit to your commands. Whatever the outfit, it communicates to everyone saying “I’m the boss, I’m in charge, you will respect me”. Around that outfit is a slight shimmer of a golden radiance surrounds you, as though you are touched by the divine, having divine grace or favor.
You are on a dais, raised up slightly from the crowds around you. Almost spotlighting you but it also lifts you up, putting you beyond the reach of low opinions and attitudes. People also just naturally look up to you, seeing you as a leader, a guide, an inspiration.
This energy continues to flow out from you and taking shape around you as a clear wall of force. You can see through it easily, seeing what you want to achieve, the resources you desire, the road ahead that you want to walk. You can clearly see your allies, and good things that can help you. However this wall blocks out evil influences, the gazes of the jealous and envious, the evil eye, hatred of your enemies, and malign influences that restricted and limited you before. Those ropes and chains are blocked by the this wall, unable to make you small and restrain you again. You are strong, capable, powerful, and protected.

If you have problems with visualization as an image, I recommend just writing this down, or reading it out loud when you want to do it.
For the first visualization, if you want to tie in things and make them more physical, you can loosely tie yourself with ropes and chain in order to feel those bindings on your body and breaking yourself free from them.
For the second one, see if you can find a picture of the desired outfit. If you can draw it yourself, great, but you can also write out a detailed description of it to help yourself in connecting with it more strongly. If you can create it or buy it, you might also try that. When you wear it, just practice feeling powerful and awe inspiring in it.
You can also use visualization #1 with uncrossing work. I have found it to be very effective for that. Afterwards when you are blessing yourself or working to bring luck or power, using visualization #2.