So how many years do you have to play just to unlock ( not even research)   the tech tree?  1 module per day , and 3 days in a row its  the same module and noone on the market needs em o,O 

Even with crystals its 1 module per day and they get more and more expensive .

Unfortunately, most players now are done with their techs so there aren't many people still trading modules.  It takes about two years to get it all done if you just wait until you randomly get the right ones.  You could try asking your clanmates or other friends if they have any spares they could send you.