Your a noob buddy, the game is designed to make you pay. So unless you got a couple thousand bucks to spend, don't play the game. This why hundreds of top level players are leaving like me. It's so bad, I gave my account away for free. You  are new, so you are new to their schemes. Which means your definitely gonna pay soon. Quit while your ahead. Don't fall into the trap we fell in to. Right now, your already getting a glimpse of how bad it is. Once tour a higher level, it's wayyyy worse.

It's possible to reach arround 3000 Power pretty quickly without spending, but after that your progress slows down to a snails pace if you continue to not spend. but this is asuming you know what your doing

Well yes, the game is broken in these days. Think if you want to invest time into it. There are much better games then Shield Arena. You will pay and all you get in reverse is frustration. Neverending frustration, not satisfaction. This is how it is in game right now. 

how to say . you said 100% the real description of this game. frustration and losses ... huge amounts of money .... for nothing ... yes friend change while you have time ... then it will be too much to cry your dollars thrown away.

you just have to go on you tube , and watch the official videos of the game, 99% of criticisms complaints and more ..

Hello! Sad to hear about such an experience, but do not give up. The game provides diverse opportunities, so I'd like to recommend you keep on experimenting: try different combinations of Mechs/Weapons/Pilots/Implants/Mods, come up with unusual strategies and team up with your friends. Step by step, you will become better! I belive in you💪