Trying to make android system rw on a rooted phone, but it doesn't allow me. FML. Hiw am I going to block YouTube ads now?

Please help me before I get mad,
First day with Linux Mint.
Objective: Make a 3Tb Hdd Read and Write, Right now I can use it only to Read.
Finally Installed Linux after some bumps (bad ISO).
I have 2 HDDs, the SSD with Linux and a 3Tb HDD
Right now the 3T has 4 partitions, one for windows, 3 for personal use with lots of personal stuff I can't lose.
I've been looking for videos, tutorials and the maximum I got was to had one partition mounted as a folder
<code>
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=f0a65631-ccec-4aec-bbf5-393f83e230db / ext4 errors=remount-ro 0 1
/swapfile none swap sw 0 0
UUID=F8F07052F07018D8 /mnt/3T_Rodrigo ntfs-3g rw,auto,users,uid=1000,gid=100,dmask=027,fmask=137,utf8 0 0
</code>

What am I missing?
PS.: Next: Make fingerprint work in Linux