Being from the US, I have no idea how your system works or what the various levels mean. Nor do I understand what a BS in Technology means. Is it a full blown engineering degree (like our BSEE) or a technician certificate?
In terms of engineering:
You have identified a weakness and it needs to be fixed. Take the gap year and spend it doing math. Around here the course might be called "Pre-Calculus" and it would involve Algebra, Geometry, Trigonometry and definitely is focused on solving problems. It takes two semesters (a full year) and is considered a prerequisite for Calculus I which is a first semester class in an engineering curriculum. IF you don't have pre-calc skills, you just added a year to your graduation date.
Around here we have Community Colleges that offer pre-calc and they are fairly inexpensive.
You can get help at Khan Academy and, if you want to spend some money, at CalcWorkshop.com (highly recommended). There is a free course on "Limits" at CalcWorkshop to help you evaluate whether her style of teaching meets your needs.
More advanced math is taught in parallel with engineering subjects but, first semester, you need to start with Calculus I. In turn, there will be classes for Calculus II, Calculus III, Differential Equation and Linear Algebra. That is 5 semesters of math or about 2-1/2 years of a 5 year program. Not to worry, there will be more math in the last 2-1/2 years. It just will have a different title, like "Field Theory" or "Signals" or "Control Systems" or "Circuits". There will be a math oriented class every single semester for 5 solid years!
Get that pre-calc out of the way!