Welcome to the LibreOffice and thanks for the patches!
Students application deadline is approaching fast, so I would recommend
you check the Ideas page  and even the page for ideas without a
mentor . Ideally, the easyhacks you have been working on should be
related to the GSOC Idea.
Then, start discussing your ideas with possible mentors and prepare your
proposal ( do not leave it to the last day. The sooner the better )