Survival in a new company

I recently joined Hashedin by Deloitte in august. Before that I was in Infosys for 1.8 years , mostly was on bench and very few months on project(2-3), where I did basic work on angular in a legacy project , not learned anything there because of scattered code base and that was worse as of my first project. I did some preparation , learned concepts of angular and JavaScript theoretically mostly. Then I switched to Hashedin as SDE 2, now I don’t have much Handson experience, I feel scared and feel anxiety , how I will be able to perform and meet expectation of this position. Although I am trying to learn more concepts of angular but still not feeling confident. As an Sde 2 they expect me to work on complex task independently, although I have 1.8 years of experience. I feel worthless and depressed everyday thinking about it. My head always remain flooded with self doubts and anxiety. Feel sometimes to quit but I have bills to pay. How can I survive through this, I am ready to learn and do put efforts. But how will be able to cope up with tasks they threw once I’ll be in a project. Can anyone give some tips and advice how should I tackle these situations and get better. I’m tired of feeling low and mentally sick all the time.