I have never wished harm on anyone. I try to let things go and pray a lot. But Im SO deeply hurt and angry that I want this person to feel the same pain.
My ex has always contacted me on and off telling me he loves me and wants to start a family yet he would sleep around. I accepted it since we were single and I know he never really cared for them. This time he again told me he loved me and wanted me to be the mother of his kids but later told me he slept with an older coworker of his, who neglected her kids to go on vacation with him and sleep with him. He told me he likes her but still loved me.
I dont believe in his feelings but know he loves money and his job. I want him to lose those two things. The only things he cares about. Im so heartbroken that I need him to feel lost and down in the gutter by losing his source of income and the money he has now.
The best spell you could possibly cast is one of your own creation. Candle magic is a good candidate for what you're looking at. 3 candles, one green to represent money, one red to represent your passionatewholehearted feelings, and one black to represent what you feel it represents. Be mindful of duality, where green and red candlescan be used to assist with finances and love, it can be used also to direct misfortune and betrayal. Light, then meditate on the black candle, and pour all of your intentions into it. When you feel the next step is ready, pour the wax from the candle onto the red and green candles. From there you should be able to figure it out.
Agreed with the first comment, however if you want more of a traditional approach I would also research the following:
A) crossing powders - if you really want to destroy him, you can use goofer dust for example (this can be fatal though). you can look for any crossing powder and make it by your own, with the intent of him losing his job and money. sprinkle it in his shoes, cloths,bed sheets, and mainly near his work place. You can also put the crossing powder inside a bottle with his foot-prints dirt and burry it near his work-place.
B) crossing watersoils - same thing. For example, war water.
You can also use those in spells that you make to dress the candles or sprinkle over a certain ingredient to boost its potency.
I personally prefer improvising with the chants according to my intent and feelings, however you can write something down if you feel like it - according to your intent. You can also use words of power and call upon spiritual beings that may assist you with the work.
Rather than trying to get revenge on this person (which does seem deserved), why not concentrate on workings to help banish him from your life and for you to simply leave him behind and move on. The more you concentrate on him the more closely you tie yourself to him.
I do want to move on and am trying my hardest to accept whats happened and live my life. But when Im not busy, all of it comes rushing back and think how he never felt any pain or regret and want him to.
Energy is in a constant state of vibration. Movement. As Lark wisely said, there is usually an alternative to receive a similar result. If you curse him successfully, which,as a side note, takes more energy than banishing him, will have the same results in the end if were to simply banish him from your life. "Banishing" to a lot of younger people can be related to blocking someone on social media. Unless they have other ways to contact you, you immediately have a sense of "its over"; a sense of finality. Whether you curse him, banish him, work through it, or whatever, at the end you will have a similar sense, not necessarily the exact same described .
Banishing can be executedthrough a variety of methods, physical or metaphysical. Meaning you can banish someone using your mindset or magic. Magic can only assist you with getting to the mindset necessary.
Along the lines of what Gucci said, personalized chants are the best. The more personal a spell, ritual or practice, the better the results. You get what you put into yourself and your endeavors. Look up some chants and base what you need to say off those. Remember that a chant is a methodto combine your intent and direction of througu energy, energy being the words you speak which resonate at a vibration.