Want to resign from TCS without any offer

Hi. I worked in 2 roles. One is Linux support and one is java developer. Now I want to switch company but my resume is getting rejected. I cannot continue as a Java Developer(current role). I want to switch to DevOps domain. I tried to push myself very hard to upskill myself, everytime I face rejections and I don't even know what I am doing in my project and moreover I have a colleague he knows everything in the project and I asked the same doubt 10 times with him and but still I am not sure on it. I have a fear if he gets a new job and I will only the one to handle the entire project which I am not sure I can do it or not. Lately, I am am forgetting the things which I have did before. I tried to learn about the project and documented everything but still I feel it's like a new thing for me. So I am trying to switch the job before he gets it. He and I get C band straight 3 years and we are unfortunate to write wings exam.he is also trying to switch.it like cat race. I feel sick about it. So, I am planning to switch the job, bit it is very difficult to switch. My college friends are earning more than me which I struggled everyday and they enjoyed in b.tech and now they are are earning more than me. Now, all my hardwork is like for nothing. I don't have energy to continue further to upskill myself in learning coding rather I feel learning devops is easy and continue. Now, my work is getting more and more and I don't have time to upskill myself but trying everyday to learn something new. I sacrificed everything I didn't go for movies, temples, beaches etc. Now, I feel like I am for nothing and I dont have confidence in myself.

My brother is telling don't learn devops, but try apply for Java based jobs but i have no interest in that anymore. Learn java and do your project which I don't have any interest anymore.

I feel like I want a short breaking my life and go temples, a new places talking with new people and make friends and start a youtube channel but these outside voices are getting more and more and making me scared. I want to take the step which helps me to regain myself and try applying new jobs.

I am scared as hell. I am not even sleeping peacefully, right now I am not married and I want to the risk now itself or else I cannot take the risk later.but iam not sure whether this right decision or not and where it will take me to leave the current job.

Should I quit with my current skills or else struggle everyday with the job I have and change the job when I got a new offer

My current skills : Linux(previous project experience), Jenkins, SQL, Docker(learning now), sonarcube, nexus

Should I quit and gain skills within one and half month or else do the job which I don't know what am I doing and every time I am asking chatgpt for the code and for the ideas as well. In short run chatgpt will help but in long term even that itself is not working. I don't have energy to learn DSA and System Design. Or else try doing something which I like and I am sure that I will get success when I upskill myself.

So, please kindly give your opinions on it.