Try to hang in there and let your recovery lead you. The more you struggle and fight against the process, the harder it will be to get through it. You will get better as time progresses, and will be eating more normally very soon. Personally, I don't mind the chewing issue. Chewing and tasting the food is the most satisfying part of eating, so even though I could swallow foods that are more whole atthis point, I'm still staying with the habit of chewing things very thoroughly. I find it more enjoyable, and it also keeps me from eating as much.
Many, many people have this surgery and never go online to post a single thing. There are many very happy "customers" post-Nissen. Just hang in there and trust the process! You will get better and will eat normally one day soon.
Take care, and happy chew chew chewing!