[galaxy-user] problems with the uploading

Dear Galaxy team, I'm using Galaxy Main to run paired-end RNAseq data. I'm a new user and I'm in trouble. I have a total of four set of data to compare: 2 negative controls and two samples. I uploaded already three complete histories (as fastq files) which were around 70 Gb each (MBO11, MBO12 and MBO13). I need to upload the last history (MBO14) but unfortunately I just started and apparently I cannot go further 'cause I've used already 100% of my space. Could you suggest please me a way to go on? My login is edoardo@igbmc.fr. Let me know if you would need my password to check my account. Thanks a lot for your support. Monica