Yes at 23 u can get ur teeth alignment done and get a good smile for lifetime.extraction of teeth is the last step to gain space, sometimes reducing the size of teeth by few mm cn sort the spacing issue.wether to remove teeth for space is the call of the treating Orthodontist.
Search n practo and find a orthodontist near ur place and consult him for further clarifications
Next Steps
u HV to be patient during the treatment as it may take up to 1 yr for completion