One of the most emphatic bits of advice I got when I came here and asked advice about brushing up on my reading was to read lots and lots of very simple pieces - a crazy number, but very short exercises. I didn't - I knew I'd get so bored I'd soon hate the sight of my piano, so I took on harder pieces I was desperate to learn, but it's good advice and I would if I could (be bothered). It might suit you better, and it's worth finding your own balance. Some people are disciplined enough to sit and do exercises. I ain't one of them. All the best!
On a side note: I don't know if this is normal for NEW players to reading, but regarding note interpretation: I find it really difficult trying to get my brain to shift between the upper and lowers staff. I realize that the notes just repeat from A to G, but the staff lines look so similar I get mixed up when I'm reading the upper G staff for example and then jump to the lower F cliff staff. There are those little riddles we use, but it's so difficult to think about that when your brain is trying to interpret the fingers notes and then the upper and lower staff notes. I suppose all this will just take some time.