Heya, as someone who also lives in an apartment and also building his first helmet I hope I can be of assistance, if the pros show up listen to them rather than me as I have little experience, but for starters I always read you can't make pep with print paper or paper as thin as what you are using I think, you need card stock, as I don't think the thin paper actually survives the whole process but don't quote me on that... just something I read a lot
as for the visor its better to keep it in till the end as it helps with the helmets integrity, but it should be safe to cut it out after fiber glassing it, in your case you might want to consider starting over with card stock or if your set on continuing, see if you can connect areas with some paper to reinforce it and see if you can keep it from further deforming
