Need career suggestions for me.

Hi all,

I have been working in an MNC from the past 3 years and working in a support project where my primary task is.... we have some internal tools/applications. For every quarter or so there will be OS upgradations. So we need to make these tools compatible with the latest OS (Linux environment). Most of the tools were built in 1995 using C language and some are Java. We also do functional testing for those tools. There will no nee functional requirements. My skills are not so good in anything as I am not getting exposure to do anything.

So now I want to shift my career. In my mind I have 3 career options to choose.

1. SDET
2. React Js Developer
3. ServiceNow Developer

Please let me know what can I do as I am not interested in DevOps and Java developer and don't want to continue as a support engineer. Thanks in advance 🙌.