Insecure about what if i lost my job

I feel a lot of insecurity about what if I lost my job. I work in Analytics & data science in a well known Indian Bank. Overall WOE is 8 yrs with 6 yrs in Analytics Tier 1 Engg+MBA. I would say after MBA i lost my way and hence behind my peers in career growth. This is mostly due to unsatisfactory work in the beginning leading to switches based on emotions and impulse, not patience. Though my current job is stable and its been about 2.5 years in this role, it’s a bit stressful and honestly I don’t like the constant firefighting mode that we are in. I constantly put in 10-11 hrs on a daily basis with occasional work on weekends. This includes almost 3 hrs of meetings everyday, where a lot of redundant work requests come in and almost everytime they have to be delivered in next 1-2 days. Quality of work is not so great. I tried applying but not getting decent calls. Only startups and Indian cos with high turnover reply to my applications. They too aren’t ready to discuss a decent hike. I am really insecure about what will happen if I quit / laid off. I have gone through layoffs earlier in my career and believe me it’s a terrible experience, eats up all your savings. I tI tried a few sidegigs to build passive income source such as building a YouTube channel on travel, or a travel advisory app but couldn’t move much. App didn’t happen and YT channel didn’t get off after few months of hard work. I currently am very demotivated and feel that i have not been able to grow in my career. Salary posts on grapevine add a lot more to my demotivation. Current CTC is 27.