Yes and no. If u blindly or emotionally put money in with no risk control or reason then yes its gambling.
goes to the question of is a professional poker player a gambler? a professional has risk control, and a strategy and uses information to make a decision.
If you have a plan or strategy also then less so. It also depends on which market u trade on, but there is always a risk like with everything in life.
But yes only put in as much as you are willing to lose - risk control.
if i buy a car will it die on me? will i crash it today? tmr? etc...
if i talk to that girl will she reject me or no?
There is risk in everything so dont let that hold u back. Cant win the reward if u don't try to.