Hello Nayim001....
I hope I am wrong... But the old saying "If something sounds too good to be true.. It probably is"...
More often than not ends up being very accurate...
What you describe above, in my personal opinion, sounds very optimistic and probably beyond reasonable expectation..!??
Although you could reasonably learn the basics of the wiring regulations in 4 months...
I doubt you would have a sufficient grasp of the electrical science, physics and maths, plus the practical installation skills, required to design, install, inspect, test & certify your electrical work to ensure that it fails safe, so you don't endanger any people property or livestock with your work?
I fear you could end up spending a lot of time and money on a course that will not give you the qualifications needed to progress into your chosen prospective career. (The forum archives are littered with posts from people who done what are general termed "Short Courses" then found themselves still unable to progress into their desired career path, as most employers would not recognise the limited qualification's they had spent thousands of pounds to acquire!!!
The electrical trade covers a wide spectrum of work, which includes some overlap of skills and knowledge and other specialised skills and knowledge.. Some companies have a broad field of work others just keep within a narrow sector..
e.g. Commercial, Industrial, Shop fitting, Maintenace, New build, Private domestic, Solar, EV, Rental sector, Inspection & Testing, Portable appliance testing, Schools & council work, Network distribution, Streetlighting, Electrical generation, Farms & Agricultural installations etc.. etc.. etc..
Have you thought about what area of work you would ideally like to be able to get into?
I could be worthwhile checking if the qualifications you hope to get from your course are applicable in the sector you would like to work in?
I wish you well with your studies..
And if you do have a good grasp of maths & physics these will be very valuable in the world of electrical work