Hi Assan, could you confirm that you are enrolled in a fully-approved full-time Basic Training course run by a Part 147-approved Training Organisation?
I ask only because some non-Part 147 courses do follow the curriculum laid down in EASA Part 66, in the guise of some other qualification.
A fully-approved course would include at least 800 hours Practcial workshop training, and at least 400 hours On-The-Job training in a Part 145-approved Maintenance organisation. The OJT must be arranged and monitored by the Part 147 TO that is running the course.
I wouldn't worry too much about EWIS, Fuel Tank Safety and Human Factors courses unless and until you want to get a job in a Part 145 Maintenance Organisation. (Note that the Part 145 HF requirement is not the same as the Part 66 Module 9 requirement.) When needed, you can do these courses quickly, on line even, and they have a 2-year validity, so leaving them to the last minute saves money.
Whether you are on an approved Part 147 course or not, you would have to complete several years work experience to get an AME licence. This is when you would need those certificates.