Dreaming of mosquitoes represent problems that are currently bugging you. Whether it is buzzing around and waiting to take a quick draw of blood to feed itself, the mosquito must be squashed before your days return to normalcy. Your goals for wealth and happiness are on hold while these obstacles continue to trouble you as pestering mosquitoes.
Dreaming of barbed wire means you are facing an obstacle in your life. The barbed wire indicates that something is holding you back from moving forward while also inflicting pain. It could be a thankless job that you are grinding through without ever advancing to the next promotion. It could be a significant other that drains your energy without building towards a future together.
Fences are used to lay claim to land and wall off your space and territory. Dreaming of fences may mean something about those boundaries and walls. However, there is always two sides to a fence. You may dream that you are on the inside, building the fence as your safety barrier. It keeps out that which you do not want coming in and shielding yourself from the outside. You may be putting yourself into isolation.
Dreaming that you are on the outside of a fence may prove to be the frustration of wanting to enter something, the obstacle that is set before you that tries to block your progress in.
A calf is young and inexperienced. Pertaining to your dream about a calf, you will encounter obstacles due to the same level of inexperience. Your peers will not overlook this issue if you do not improve in areas that contribute to the overall team where as currently you are holding yourself and others behind that associate with you. Shape up your knowledge and experience or ship out.