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From the pictures and its foliage, it looks like a Phalaenopsis orchid, also known as moth orchid. Here is more information: https://www.gardeningknowhow.com/ornamental/flowers/orchids/phalaenopsis-orchid-care.htm

This article may be helpful: https://www.gardeningknowhow.com/ornamental/flowers/orchids/make-orchid-bloom.htm

This plantlet is called a keiki. This article will help you with seperating it from the plant: https://www.gardeningknowhow.com/ornamental/flowers/orchids/orchid-keiki-care.htm

Orchid flowers can last 2 or 3 months, but they do eventually die. Pull off the dead or dying flowers, but don't cut the flower stem unless it's brown and dry looking; sometimes orchids send a new flower spike off an older spike. Most common orchids will take several months to a year before they flower again, but their care is simple, and it's a thrill when they flower again. This article will give you a start on good care for your orchid. https://www.gardeningknowhow.com/ornamental/flowers/orchids/indoor-orchid-care.htm

Many orchid species typically flower only once a year. You need to look for information specific to the type of orchid you have; meanwhile, this article will help you: https://www.gardeningknowhow.com/ornamental/flowers/orchids/make-orchid-bloom.htm

The sticky substance along with the poor growth seems to point towards a possible pest problem. Orchids are occasionally affected by mealybugs, scale, and aphids. We prefer to treat pest issues with neem oil, as it is quite effective. Here is more information on using neem oil as well as links for the insect pests which may be affecting your plant: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm