staring up my macro learning

though there are many2 people said and suggest that i shouldn't buy a macro ring because of the quality of image that i would get end up i still buy it. i bought a cheap marumi macro filter so that i could start my experiment of taking macro pic. after i take it i agree that the pic look soft and the quality lower down quite a lot hehehe. but whats wrong ? I'm not doing commercial shot yet, it's cost me 90 dollar for 3 macro filter and i have fun trying shooting macro which i never really try it before so for all photographer out there if you really want to learn and your money isn't enough yet just buy what u need to learn and save money to buy a better one later here is 2 of my pic that i took today