[Importance of researching technologies(HELP)]

Ok guys...I guess that I have a grip on it now. At the end is like I thought, one just feels and knows when is the time. Thanks for the help! 

[Importance of researching technologies(HELP)]

Hello there.

I'm a noob to this game, and i'm not really sure about the importance, or better, how to time researching technologies. I'm playing alpha 23, and I'd like to know if I have to try and get blacksmith technologies as fast as I can or if it's better to use my resources to keep producing units and buildings. I'm sure that they are really important as they gives you a real boost to your troops, and I'm not talking about gathering technologies, as I always research them asap, but I keep strugling with blacksmith and fortress technologies, because they are really expensive.

Thanks for the help guys!