My best wishes with you for your fresh effort for undertaking a course suiting to your skills through the online platform especially in this corona phase. Based upon your inclination, you can continue your studies through the distant education which are well recognised institutions having their affiliations with UGC. Some of the institutions in these lines are Sikkim Manipal University, Karnataka Open University, Kota open university, Utkal University, IGNOU etc.
However, I would suggest you to persue your courses from IGNOU because of their excellent course material and by going through this material, you need not refer to any supplements from any source. They, too, have a session of contact programme for a month with the subject experts where your confusion relating to the subject would be resolved with their clarifications. This is applicable to all their courses.
Though you had been a science student but you may undertake any stream in your graduation course for which you have passion. You can avail of their online classes and apart from your normal job, your graduation course can be persued in your leisure time.
If you want to go in teaching profession, take up the B.Ed course once you complete your graduation so as to have your scope of your absorption in schools.
If you want to join the diploma courses, you may undertake the courses of Symbiosis, IGNOU or evening classes offered by some of the institutions. In that way, your aspirations will be fulfilled.
The other area providing you bright scope is the area of computers where you can take up certification like Java, C++, Oracle etc from one of prominent institutions such as NIIT, Aptech, Udemy etc. This certification will help you to widen your prospects in the computer field.