How to overcome Seroquel long term side effects after withdrawal

I genuinely feel like I am going insane and I just don't know what to do anymore. I was on Seroquel SR 50mg at night to treat anxiety and insomnia during 1 year. I stopped 4 months ago when I realized I was having memory issues, difficulty in making decisions, thinking slowed down, body movement slowed down, sexual appetite reduced, joy and passion for life disappeared, I started postponing all important decisions of my personal life and at work. Lost my self esteem, lost my girlfriend, I let down my family, my friends and my boss. Today I can't work efficiently anymore. I Stopped being able to finish tasks, lost the sense of responsibility and was completely detached from my emotions. My mental state still has not returned to where I was before. Since then, I've had a really hard time with relationships with people. I have little desire to maintain friendships, I end up spending my time alone at home and I feel terrible for that. I have a hard time relating to the emotions of friends and I am so detached from my own emotions that I find myself not caring about people I have known for years. I also have no interest in romantic relationships. I lost the attraction and drive to find a new woman because I don't feel emotion there. I feel like my own mind is suffocating me and doesn't allow me to be who I was. It's terrifying to know how my social life is today compared to what it was before taking Seroquel. I spend days completely alone just thinking about the past in my own mind. I have difficulty leaving bed, leaving my house and I feel like the world around me is moving at a faster pace and nothing is happening in my life. I can't make decisions about the future of my career. I don't want to feel this way, but I don't know how to not be so detached. I want to go back to normal but I fear this is my new normal and I do not know what to do. Has someone experienced this consequences after taking and stopping Seroquel? Is there a way to overcome this and go back to normal life?