Definately, many spirits will cause harm for there own reasons, regardless of your rituals or requests.
With my past experiences starting at age 6 in 1966 on Halloween i started to have strange visions and experiences. I did not have an explanation untill recently. Later, when i was a teen i started to experiment with self improvement and got several books some were mail order and dealt marginally with the occult.
After reading one text i decided to write my own motivational prayer for better grades and education and many strange things started to happen, waking up st 3:21 am and then weird anger flashes.
If i didn’t have better self control I could have gotten sucked into more anger which could have lead to considerable misery, loss and conflict leading to an early downfall, even jail time. But i dealt with the cards i was given and survived leading to selfemplyment and later gratification.
There are many forces out there, some are more benevolent than other’s, many spirit’s come through the veil with the sole intention of causing harm to anyone they encounter.
The good thing for you is that since you have some experience you should know that when negative things begin to prevail you can take counter measures and pull back, knowing what is causing the visions or emotional turmoil and block the anger flashes and use your own knowledge and self will and empowerment to think things through and come to your own conclusions for your own betterment.
If you don’t know what is going on and are taken by surprise is where the danger really lurks that could lead to serious difficulties.